Below you'll find some information I have collected over the years about Third Generation Camaros......
IROC-Z HISTORY
In 1984 Chevrolet introduced the IROC-Z Camaro which became known as "the Camaro that thinks it's a Corvette" and produced this package through 1990. The name IROC and the styling features were adapted from the Camaro IROC racing cars that were developed for the International Race of Champions. The general idea behind the IROC-Z was to take the Z28 and turn it into a true high-performance/handling Camaro that anyone could own without having to hold a SCCA license. For a mere $659 over the 1985 Z-28, IROC-Z's were given 16-inch wheels, 50-series tires, monochrome paint treatment, much more aggressive ground effects skirts and halogen fog lights. All this combined with a tuned suspension that lowered the car .5 inches below the Z-28 and a special graphics/paint package turned the IROC into a Z-28 that was "fulfilled".
Other facts:
IROC-Z's shipped from assembly plant with no IROC-Z decals? Thats right, seems some California buyers wanted the monochrome paint job but without the decals in order to have something different. The Van Nuys assembly plant produced 502 IROC-Z's this way. The RPO code for this option is IC5.
*50 350cu equipped IROC-Z's were produced in 1986. They were built without t-tops or air conditioning, and came mandatory with an automatic and with a 3.27 Borg Warner rear axle. Unfortunately this option was not available to the public until the 1987 model and only came with a 4 spd automatic.
*In 1987 the IROC-Z Convertible made it's debut....
*In 1988 the Z-28 was dropped from production and replaced with the IROC-Z.
In 1988 Chevrolet secretly produced 4 1LE(option level 0 IROC-Z) Camaros. Then 1989 the 1LE performance package option became better known. 1LE package was obtained by ordering the following: * Level 1 IROC-Z with 5.0 TPI engine with 5 speed or 5.7 TPI engine * Optional axle ratio (G92) (305/3.45, 350/3.27) and its required options. * Air conditioning delete (C41) (standard heater)
The 1990 model IROC-Z production ended on 12/31/1989 due the end of the IROC contract.
1991 marked the return of the Z-28 replacing the IROC-Z.
RPO Codes
1985
RPO Description Qty Price
1FP87 Camaro Sport Coupe, 4-cyllinder 97,966 $8,363
1FS87 Camaro Berlinetta Coupe, 6-cyllinder 13,649 11,060
1FP87 Camaro Z28 Sport Coupe, 8-cyllinder 68,403 11,060
AG9 Power Seat, drivers side 32,080 215
AM9 Seat Back, split folding rear 21,295 50
AU3 Power Door Locks 70,658 125
A01 Tinted Glass, all windows 166,996 110
A31 Power Windows 88,381 185
A90 Power Hatch Release 93,467 40
BS1 Quiet Sound Group 4,954 82
BX5 Moldings, black roof drip --- 29
B34 Floor Mats, carpet insert, two front 114,989 20
B35 Floor Mats, carpet insert, two rear 110,085 15
B48 Luggage Compartment Trim 18,418 164
B4Z IROC Sport Equipment Package 21,177 659
B84 Moldings, body side 119,465 55
B91 Boldings, door edge (black) 26,852 15
CC1 Roof Panels, removable glass 63,543 821
CD4 Windshield Wipers, intermittent (std Berlinetta) 79,051 50
C25 Rear Window Wiper, with washer 7,367 120
C49 Defogger, rear window 119,137 140
C60 Air Conditioning 146,381 730
C67 Air Conditioning, electronic (Berlinetta only) 13,135 730
DG7 Mirrors, electric twin remote 21,626 139
DK6 Console, roof 23,816 50
D27 Cover, locking rear storage (std Berlinetta) 9,680 80
D35 Mirors, sport right and left remote exterior 93,225 53
D42 Cover, rear compartment cargo area 56,516 69
D80 Spoiler (included with Z28) 62,128 69
F41 Suspension, sport 19,231 49
G80 Rear Axle, limited slip 15,327 95
J65 Brakes, power front disc and rear disc 19,871 179
K05 Heater, engine block 6,384 20
K34 Speed Control, with resume 84,884 175
LB8 Engine, 173ci, 135hp V6 (std Berlinetta) 78,315 335
LB9 Engine, 305ci, 215 hp V8 (Z28 only) 32,836 680
LG4 Engine, 305ci, 155hp V8 (std Z28) 63,052 635
L69 Engine, 305ci, 190hp V8 (IROC Z28 only) 2,497 680
MX0 Transmission, automatic with overdrive 152,600 395
N33 Tilt Steering Column 133,457 110
N90 Wheels, aluminum (std Z28) 7,960 225
QAC Tires, P235/ 60R15 blackwall (Z28 only) 16,884 85
QHW Tires, P205/ 70R14 white letter (Sp Cpe only) 34,224 146
QHX Tires, P205/ 70R14 blackwall (no cost Berlinetta) 8,224 58
QHY Tires, P205/ 70R14 white stripe ($66 Berlinetta) 13,866 124
QMX Tires, P195/ 75R14 white stripe (Sp Cpe only) 42,055 62
TR9 Lighting, auxiliary 74,080 72
TT4 Headlamps, halogen (4) 56,761 22
UA1 Battery, heavy duty 52,480 26
UL5 Radio, delete ($256 credit with Berlinetta) 11,143 -56
U21 Gage Package 20,675 149
U35 Clock, quartz 809 35
U64 Speakers, two rear 4,270 30
U69 Radio, AM-FM 11,384 82
U75 Antenna, power 25,997 60
V08 Cooling, heavy-duty 11,332 70
YE1 Radio, AM-FM stereo 10,109 212
YE2 Radio, stereo, cassette, clock, s/s, equalizer 34,675 504
YE3 Radio, stereo, cassette, clock, seek/scan 49,955 354
YF1 Radio, AM-FM stereo (no cost with Berlinetta) 7,833 173
YF5 Emission Equipment, required for California 19,805 99
ZJ7 Rally Wheels 90,925 112
1986
RPO Description Qty Retail
1FP87 Camaro Sport Coupe, 4-cyllinder 99,608 $9,349
1FS87 Camaro Berlinetta Coupe, 6-cyllinder 4,479 12,316
1FP87 Camaro Z28 Sport Coupe, 8-cyllinder 88,132 12,316
AG9 Power Seat, driver side 32,045 225
AM9 Seat Back, split folding rear 25,975 50
AU3 Power Door Locks 85,154 130
A01 Tinted Glass, all windows 182,560 115
A31 Power Windows 110,155 195
A90 Power Hatch Release 109,616 40
BS1 Quiet Sound Group 10,758 82
B4K Radio, stereo with seek/scan and clock 31,991 232
B4N Radio, stereo with seek/scan 8,130 193
B4Z IROC Sport Equipment Package 49,585 659
B34 Floor Mats, carpet insert, two front 126,236 20
B35 Floor Mats, carpet insert, two rear 121,340 15
B48 Luggage Compartment Trim 29,738 164
B84 Moldings, body side 145,607 55
B91 Moldings, door edge (black) 24,402 15
CC1 Roof Panels, removable glass 91,089 846
CD4 Windshield Wipers, intermittent (std Berlinetta) 108,442 50
C25 Rear Window Wiper, with washer 1,566 125
C49 Defogger, rear window 136,537 145
C60 Air Conditioning 167,602 750
C67 Air Conditioning, electronic (Berlinetta only) 4,374 750
DD8 Mirror, inside rearview automatic 12,793 80
DE1 Louvers, rear window 6,058 210
DG7 Mirrors, electric twin remote 37,686 91
DK6 Console, roof 28,917 50
D27 Cover, locking rear storage (std Berlinetta) 5,966 80
D42 Cover, rear compartment cargo area 80,706 69
D80 Spoiler (included with Z28) 76,457 69
G80 Rear Axle, limited slip 29,207 100
G92 Rear Axle, performance ratio (Z28 only) 4,703 21
J65 Brakes, power front disc and rear disc 26,684 179
K05 Heater, engine block 6,945 20
K34 Speed Control, with resume 106,431 175
LB8 Engine, 173ci, 135hp V6 (std Berlinetta) 77,478 350
LB9 Engine, 305ci, 190hp V8 (Z28 only) 46,374 695
LG4 Engine, 305ci, 155hp V8 (std Z28) 68,293 750
L69 Engine, 305ci, 190hp V8 (Z28 only) 74 695
MX0 Transmission, automatic with overdrive 160,639 465
N33 Tilt Steering Column 150,251 115
PB4 Locks, wheel (for RPO PE1) 6,298 16
PE1 Wheels, aluminum (Berlinetta only) 6,596 225
QAC Tires, P235/ 60R15 blackwall (Z28 only) 4 85
QDX Tires, P195/ 70R14 Eagle GT (Berlinetta only) 2,826 80
QHX Tires, P205/ 70R14 blackwall (Berlinetta only) 1,195 nc
QHY Tires, P205/ 70R14 white stripe (Berlinetta only) 2,496 66
QYH Tires, P215/ 65R15 white letter (no cost Z28) 67,821 92
QYZ Tires, P215/ 65R15 blackwall ($92 credit with Z) 66,567 nc
TR9 Lighting, auxiliary 85,679 72
TT4 Headlamps, halogen (4) 71,476 25
T96 Fog Lamps, halogen (included with IROC Z) 22,089 60
UA1 Battery, heavy duty 64,877 26
UL5 Radio, delete (-$95 with Z28, -$256 with Berl) 13,121 -56
UL6 Radio, AM with clock (no cost with Z28) 813 39
UT4 Radio, stereo, tape, clock, s/s, eq (Berlinetta) 4,095 242
U05 Horns, dual (std Berlinetta) 24,638 12
U21 Gage Package 50,627 149
U75 Antenna, power 29,833 65
V08 Cooling, heavy duty 2,919 70
YE2 Radio, stereo, cassette, clock, s/s, equalizer 50,090 504
YE3 Radio, stereo, cassette, clock, seek/scan 75,988 354
YF5 Emission Equipment, required for California 19,805 99
1987
RPO Description Qty Price
1FP87 Camaro Sport Coupe, 6-cyllinder 83,890 $10,409
1FP87 Camaro Sport Coupe, 8-cyllinder 263 15,208
1FP87 Camaro Z28 Sport Coupe, 8-cyllinder 52,863 13,233
1FP87 Camaro Z28 Sport Coupe, 8-cyllinder 744 17,632
AG9 Power Seat, driver side 1,385 *
AM9 Seat Back, split folding rear 36,864 50
AU3 Power Door Locks 8,597 145
A01 Tinted Glass, all windows 20,599 120
A31 Power Windows 6,509 *
A90 Power Hatch Release 8,413 *
B2L Engine, 350ci, 220hp V8 (IROC only) 12,105 1,045
B4E LT Package 794 *
B4Z IROC Sport Equipment Package 38,889 *
B34 Floor Mats, carpet insert, two front 8,792 *
B35 Floor Mats carpet insert, two rear 8,790 *
B48 Luggage Compartment Trim, deluxe 25,943 164
B84 Moldings, body side 22,309 60
B91 Moldings, door edge (black) 19,065 15
CC1 Roof Panels, removable glass 59,600 866
CD4 Windshield Wipers, intermittent 8,838 *
C49 Defogger, rear window 86,146 145
C60 Air Conditioning 14,743 775
DD8 Mirror, inside rearview automatic 901 *
DE1 Louvers, rear window 9,487 210
DG7 Mirrors, electric twin remote 1,861 *
DK6 Console, roof 3,366 *
D27 Cover, locking rear storage 9,414 80
D42 Cover, rear compartment cargo area 4,913 *
D80 Spoiler 25,925 69
G80 Rear Axle, limited slip 40,823 100
G92 Rear Axle, performance ratio (IROC only) 10,533 21
J65 Brakes, power front disc and rear disc 23,874 179
KC4 Cooler, engine oil (IROC only) 23,882 110
K34 Speed control, with resume 4,913 *
LB9 Engine, 305ci, 190hp (Z28 only) 28,370 745
LG4 Engine, 305ci, 165hp or 170hp (for Sport Coupe) 36,845 400
MX0 Transmission, automatic with overdrive 115,109 490
N33 Tilt Steering Column 8,862 *
PE1 Wheels, aluminum 4,653 215
QDX Tires, P195/70R14 Eagle GT (LT only) 4,522 90
QDZ Tires, P245/50VR16 blackwall (IROC only) 38,889 nc
QHX Tires, P205/70R14 blackwall (LT coupe only) 2,242 nc
QHY Tires, P205/70R14 white stripe (LT coupe only) 1,793 76
QYH Tires, P215/65R15 white letter 42,058 102
QYZ Tires, P215/65R15 blackwall (Sport Coupe only) 48,256 -102
TR9 Lighting, auxiliary 7,991 *
TT4 Headlamps, halogen (4) 5,819 *
T96 Foglamps, halogen 1,729 *
UA1 Battery, heavy duty 21,099 26
UL5 Radio, delete 4,863 *
UL6 Radio, AM with clock 179 *
UM6 Radio, stereo, cassette, clock, seek/scan 17,696 *
UM7 Radio, stereo, clock, seek/scan 8,517 *
UX1 Radio, stereo, cassette, clock, s/s, equalizer 8,160 *
U21 Gage Package 33,252 149
U75 Power Antenna 28,327 70
YF5 Emission Equipment, required for California 14,705 99
1SA Sport Coupe Package 1 nc
1SB Sport Coupe Package 2 1,212
1SC Sport Coupe Package 3 ($1,559 for convertible) 1,628
1SD Sport Coupe Package 4 ($1,889 for convertible) 2,216
1SA LT Package 1 ($1,358 for convertible) 1,522
1SB LT Package 2 ($1,705 for convertible) 1,938
1SC LT Package 3 ($2,035 for convertible) 2,387
1SD LT Package 4 ($2,376 for convertible) 2,858
1SA Z28 Package 1 nc
1SB Z28 Package 2 ($1,900 for Convertible 1,999
1SC Z28 Package 3 without RPO D42 (coupe only) 3,273
1SC Z28 Package 3 without RPO D42 ($2,975 for conv) 3,204
1988
RPO Description Qty Price
1FP87 Camaro Sport Coupe, cylinder 66,605 10,995
1FP87 Camaro Sport Coupe Convertible, 8-cylinder 1,859 16,255
1FP87 Camaro IROC-Z Coupe, 8-cylinder 24,050 13,490
1FP87 Camaro IROC-Z Convertible, 8-cylinder 3,761 18,015
AG9 Power Seat, driver side 16,176 *
AM9 Seat Back, split folding rear 19,546 50
AU3 Power Door Locks 44,019 145
A01 Tinted Glass, all windows 91,069 120
A31 Power Windows 60,662 210
A90 Power Hatch Release 55,852 *
B2L Engine, 350ci, 230hp V8(IROC-Z coupe only) 12,116 1,045
B34 Floor Mats, carpet insert, two front 56,174 *
B35 Floor Mats, carpet insert, two rear 56,178 *
B48 Luggage Compartment Trim 16,185 164
B84 Moldings, body side 80,990 60
B91 Moldings, door edge (black) 16,097 15
CC1 Roof Panels, removable glass 41,005 866
CD4 Windshield Wipers, intermittent 59,402 *
C49 Defogger, rear window 59,907 145
C60 Air Conditioning 88,431 775
C95 Dome and Reading Lamp 22,392 *
DX3 Decal and Stripe Delete (credit) 1,895 -60
DE1 Louvers, rear window 5,996 210
DG7 Mirrors, electric twin remote 17,110 *
D27 Cover, locking rear storage 9,941 80
D42 Cover, rear compartment cargo area 27,337 *
D80 Spoiler 31,383 *
D81 Spoiler, aerowing 59,271 *
G80 Rear Axle, limited slip 28,358 100
G92 Rear Axle, performance (IROC-Z coupe only) 5,252 21
J65 Brakes, power front disc and rear disc 13,388 179
KC4 Cooler, engine oil (IROC-Z coupe only) 14,963 110
K05 heater, engine block 2,786 20
K34 Speed Control, with resume 56,692 *
LB9 Engine, 305ci, 195hp (IROC-Z only) 12,620 745
L03 Engine, 305ci, 170hp (for Sport Coupe) 28,719 400
MX0 Transmission, automatic with overdrive 77,179 490
N33 Tilt Steering Column 59,403 *
N96 Aluminum Wheels, 16 inch 21,803 468
QDZ Tires, P245/50VR16 blackwall 21,803 *
QYZ Tires, P215/65R15 blackwall 77,466 *
TR9 Lighting, auxiliary 35,844 *
TT4 Headlamps, halogen (4) 26,885 *
UA1 Battery, heavy duty 15,608 26
UL5 Radio, delete 3,931 -70
UM6 Radio, stereo, cassette, clock, seek/scan 52,824 *
UM7 Radio, stereo, clock, seek/scan 16,046 *
UU8 Radio, stereo, Delco Bose, clock, seek/scan 4,457 *
UX1 Radio, stereo, cassette, clock, s/s, equalizer 19,017 *
U75 Power Antenna 19,662 70
YF5 Emission Equipment, required for California 15,709 99
FCA1 Sport Coupe Base Group 1 nc
FCA2 Sport Coupe Group 2 920
FCA3 Sport Coupe, Group 3 1,555
FCA4 Sport Coupe, Group 4 1,939
CCA1 Sport Coupe Convertible Base Group 1 nc
CCA2 Sport Coupe Convertible Group 2 930
CCA3 Sport Coupe Convertible Group 3 1,505
CCA4 Sport Coupe Convertible Group 4 1,747
FZA1 IROC-Z Coupe Base Group 1 nc
FZA2 IROC-Z Coupe Group 2 1,846
FZA3 IROC-Z Coupe Group 3 2,410
CZA1 IROC-Z Convertible Base Group 1 nc
CZA2 IROC-Z Convertible Group 2 1,747
CZA3 IROC-Z Convertible Group 3 2,218
1989
RPO Description Qty Price
1FP87 Camaro RS Coupe, 6-cylinder 83,487 11,495
1FP87 Camaro RS Convertible, 8-cylnder 3,245 16,995
1FP87 Camaro IROC-Z Coupe, 8-cylinder 20,067 14,145
1FP87 Camaro IROC-Z Convertible, 8-cylinder 3,940 18,945
1LE Special Performance Components Package 111 *
AG9 Power Seat, driver side 19,750 *
AM9 Seat Back, split folding rear 33,743 50
AU3 Power Door Locks 99,385 145
A01 Tinted Glass, all windows 110,502 *
A31 Power Windows 61,704 *
A90 Power hatch Release 60,744 50
B2L Engine, 350ci, 230hp V8 (IROC-Z coupe only) 12,370 1,045
B34 Floor Mats, carpet insert, two front 99,638 *
B35 Floor Mats, carpet insert, two rear 99,638 *
B48 Luggage Compartment Trim, deluxe 23,150 164
B84 Moldings, body side 110,500 *
B91 Moldings, door edge (black) 22,801 15
CC1 Roof Panels, removable glass 44,595 866
CD4 Windshield Wipers, intermittent 99,531 *
C49 Defogger, rear window 59,559 145
C60 Air Conditioning 104,642 775
DC4 Mirror with Dual Reading Lamps 55,238 *
DE1 Louvers, rear window 6,734 210
DG7 Mirrors, electric twin remote 26,063 *
DX3 Decal and Stripe Delete (credit) 88,144 -60
D27 Cover, locking rear storage 17,912 80
D42 Cover, rear compartment cargo area 55,250 *
G80 Rear Axle, limited slip 30,856 100
G92 Rear Axle, performance (IROC-Z coupe only) 1,426 *
J65 Brakes, power front disc and rear disc 12,895 179
KC4 Cooler, engine oil (IROC-Z coupe only) 1,428 110
K05 Heater, engine block 4,070 20
K34 Speed Control, with resume 98,741 *
LB9 Engine, 305ci, 195hp (IROC-Z only) 8,925 745
L03 Engine, 305ci, 170hp (RS Coupe) 46,715 400
MX0 Transmission, automatic with overdrive 87,857 490
N33 Tilt Steering Column 99,531 *
N96 Aluminum Wheels, 16 inch 16,449 468
QDZ Tires, P245/50VR16 blackwall 1,263 *
QLC Tires, P245/50ZR16 blackwall 15,186 *
QPH Tires, P215/65R15 all season blackwall 86,726 *
QYZ Tires, P215/65R15 blackwall 7,564 *
TR9 Lighting, auxiliary 103,112 *
TT4 Headlamps, halogen (4) 62,262 *
UA1 Battery, heavy duty 98,118 *
UL5 Radio, delete 42 -165
UM6 Radio, stereo, cassette, clock, seek/scan 73,338 *
UM7 Radio, stereo, clock, seek/scan 6,076 *
UX1 Radio, stereo, cassette, clock, s/s, eualizer 24,153 *
U1C Radio, compact disc system with clock 2,597 *
U75 Poer Antenna 13,075 70
YF5 Emission Equipment, required for California 17,757 100
FCAB RS Coupe Base Group nc
FCA1 RS Coupe Group 1 255
FCA2 RS Coupe Group 2 1,687
FCA3 RS Coupe Group 3 2,014
CCAB RS Convertible Base Group nc
CCA1 RS Convertible Group 1 206
CCA2 RS Convertible Group 2 1,638
CCA3 RS Convertible Group 3 1,873
FZAB IROC-Z Coupe Base Group nc
FZA1 IROC-Z Coupe Group 1 255
FZA2 IROC-Z Coupe Group 2 1,737
FZA3 IROC-Z Coupe Group 3 2,545
CZAB IROC-Z Convertible Base Group nc
CZA1 IROC-Z Convertible Group 1 206
CZA2 IROC-Z Convertible Group 2 1,638
CZA3 IROC-Z Convertible Group 3 2,354
1990
RPO Description Qty Price
1FP87 Camaro RS Coupe, 6-cylinder 28,750 10,995
1FP87 Camaro RS Convertible, 8-cylinder 729 16,880
1FP87 Camaro IROC-Z Coupe, 8-cylinder 4,213 14,555
1FP87 Camaro IROC-Z Convertible, 8-cylinder 1,294 20,195
1LE Special Performance Components Package 62 *
AG9 Power Seat, driver side 4,876 *
AM9 Seat Back, split forlding rear 20,840 50
AU3 Power Door Locks 32,591 175
A31 Power Windows 22,497 *
A90 Power Hatch Release 23,410 50
B2L Engine, 350ci, 245hp V8 (IROC-Z coupe only) 2,415 300
B34 Floor Mats, carpet insert, two front 32,673 *
B35 Floor Mats, carpet insert, two rear 32,673 *
B84 Moldings, body side 32,856 *
CC1 Roof Panels, removable glass 12,476 866
C49 Defogger, rear window 19,436 160
C60 Air Conditionong 32,247 805
DC4 Mirror with Dual Reading Lamps 32,963 *
DE1 Louvers, rear window 1,855 210
DG7 Mirrors, electric twin remote 8,188 91
DX3 Decal and Stripe Delete (credit) 359 -60
D42 Cover, rear compartment cargo area 20,626 *
G80 Rear Axle, limited slip 5,507 100
G92 Rear Axle, performance (IROC-Z coupe only) 2,710 466
J65 Brakes, power front disc and rear disc 2,710 179
KC4 Cooler, engine oil (IROC-Z coupe only) 2,710 110
K05 Heater, engine block 828 20
K34 Speed Control, with resume 32,579 *
LB9 Engine, 305ci, 210hp (no cost with IROC-Z) 3,092 745
L03 Engine, 305ci, 170hp (for RS Coupe) 16,736 350
MX0 Transmission, automatic with overdrive 31,630 515
N96 Aluminum Wheels, 16 inch 4,004 520
QLC Tires, P245/50ZR16 blackwall 4,004 *
QPH Tires, P215/65R15 all season blackwall 29,479 *
QYZ Tires, P215/65R15 blackwall 1,503 *
UL5 Radio, delete 221 -165
UM6 radio, stereo, cassette, clock, seek/scan 31,421 *
UM7 Radio, stereo, clock, seek/scan 1,098 *
UU8 Radio, stereo, Delco Bose, clock, seek/scan 994 *
UX1 Radio, stereo, cassette, clock s/s, equalizer 1,249 *
U1C Radio, compact disc system with clock 3 *
U75 Power Antenna 1,275 70
YF5 Emission Equipment, required for California 6,345 100
FCAB RS Coupe Base Group nc
FCA1 RS Coupe Group 1 1,410
FCA2 RS Coupe Group 2 1,782
CCAB RS Convertible Base Group nc
CCA1 RS Convertible Base Group 1 1,040
CCA2 RS Convertible Base Group 2 1,640
FZAB IROC-Z Coupe Base Group nc
FZA1 IROC-Z Coupe Group 1 865
FZA2 IROC-Z Coupe Group 2 1,759
FZA3 IROC-Z Coupe Group 3 2,143
CZAB IROC-Z Convertible Base Group nc
CZA1 IROC-Z Convertible Group 1 865
CZA2 IROC-Z Convertible Group 2 1,640
CZA3 IROC-Z Convertible Group 3 2,001
****CAMARO HISTORY****
1982
3rd Generation Camaros introduced: Berlinetta, Sport Coupe, and Z28.
Z28 selected as Indy 500 pace car. Five engines were available
with the Camaro. The LQ8 2bbl 4 cylinder, the LQ9 TBI 4 cylinder,
the LC1 2bbl V-6, the LG4 4bbl V-8, and the twin TBI LU5 V-8. Trans-
missions were a 4 speed manual and a 3 speed automatic. All Camaros
came with front disc brakes.
Sport Coupe came standard with the LQ9 (LQ8 in Canada and overseas) four
cylinder. The LC1 V-6 and LG4 V-8 were optional. Dog dish hub caps
were standard; wheel covers were optional as were 14x7 steel 5 spoke
body-colored rally wheels.
Berlinetta came standard with the LC1 V-6. The LG4 V-8 was optional.
Berlinetta came standard with exterior gold `Berlinetta' badging on the
rear bumper and C pillars. The headlamp pockets were painted in an accent
color and tail lights got a gold and black horizontal divider bar. Ber-
linetta also got its own lower body pinstriping. The Berlinetta came
standard with its own unique 14x7 finned aluminum wheel with gold accent-
ing and `Berlinetta' center cap. Also standard was the custom cloth in-
terior, rear storage well cover and additional carpeting on rear wheel-
houses (`deluxe luggage compartment trim'). Berlinetta also came stan-
dard with additional body insulation, softer suspension and full instru-
mentation. The Berlinetta also had its own unique steering wheel with
`Berlinetta' badge.
Z28 came with the LG4 4bbl V-8 as standard motor and LU5 twin TBI
`Cross Fire Injection' 5.0 liter/305 motor was optional. All Z28's came
with light-weight SMC (Sheet Molded Compound) hoods. The LU5 optioned
Z28's also came with functional hood air induction flaps. The Z28 had a
different nose that did not have the three horizontal slits above the
grille as on the Sport Coupe and Berlinetta. Z28 came standard with a 3
piece rear spoiler and black horizontal bar in tail lights. The Z28
also came with front, side, and rear lower body valances in silver or
gold. Just above the valance was a two-color lower body stripe that en-
circled the car. Headlamp pockets on the Z28 were black. The Z28 came
standard with a new 15x7 cast aluminum 5 spoke wheel accented with either
silver or gold. Z28 badges appeared on the right rear bumper, and on the
side valance just behind the front wheels. A 1982 Z28 can be distin-
guished from a 1983 and 1984 Z28 by its lack of the bowtie emblem by the
Z28 emblem on the rear bumper.
6360 Z28 Indy Pace Car replicas were produced and came with special silver
and blue paint scheme, special 4-coloer lower body striping, Indy 500 door
decals, special blue cloth/silver vinyl interior, and red pinstripes on the
standard Z28 aluminum wheel.
1983
5.0 liter H.O. motor introduced mid-year (March 1, 1983). H.O. motor came
with a higher lift and longer duration cam, dual snorkel intake system with
`5.0 Liter H.O.' decal on air cleaner, specially calibrated Quadrajet carbur-
etor, lightweight flywheel, electric cooling fan, bigger 2.75 inch exhaust
and Corvette style wide mouth monolithic catalytic converter, `5.0 Liter H.O.'
exterior badging, and came standard with 3.73 rear axle gear. In 1983, L69
was only available with 5 speed manual transmission.
New L69 cam: L69 305 H.O.
190 hp / 240 lbft
Tach: yellow 5000
red 5500
Lift: intake .410
exhaust .423
Duration: intake 320
(crank) exhaust 320
4 speed automatic 700R4 introduced and was only automatic available
on V-8 cars. 5 speed manual was introduced and was only manual
transmission available on V-8 cars.
All Z28 hoods were switched from SMC to steel except the LU5 air induc-
tion hood. Charcoal was added as a wheel accent/valance color.
1984
Berlinetta gets `Star Wars' electronic instrumentation. Included bar-
graph tach, digital speedometer, and stalk-mounted cassette/radio,
fingertip steering wheel side pod mounted controls, cruise control in
steering wheel, and overhead console.
305 Cross Fire V-8 dropped; all Z28 hoods steel. Clutches switched
to hydraulic operation on manual transmission cars.
L69 H.O. Z28 motor now available with automatic transmission. All
automatics now 4 speed 700R4 units.
1985
New noses for all Camaros and new, deeper valances and front
spoiler for the Z28 and newly introduced IROC-Z. The NACA style
hood ducts were replaced by simulated hood louvers on the Z28.
Z28 got new `grid' pattern taillights. The number of lower body
stripes grew from 2 to 4 on Z28 with a body colored gap between
the top 3 stripes. Double pointer speedometer was dropped and
replaced with single pointer unit.
Berlinetta aluminum wheels became an extra cost option and Berlinetta
now came standard with its own unique wheel covers that were styled
to look like the optional aluminum wheel. The Berlinetta aluminum
wheel also became an option on the Sport Coupe but with argent accent-
ing rather than gold and a `Camaro' center cap rather than `Berlinetta'.
Lower body pinstiping on the Berlinetta was revised by an additional
stripe.
The new IROC-Z option was available on the Z28 and came with new 16x8
aluminum wheels, P245/50VR-16 Goodyear Gatorback tires, fog lamps,
CAMARO on front license plate panel, .5 inch lowered ride height,
body colored valances, Delco-Bilstein rear gas shocks, special front
struts, increased spring rates, special jounce bumpers, 5 degrees of
caster (up from 3.5 on Z28) in front wheel alignment, `wonderbar' front
frame rail stiffener, special valving in steering for increased steering
effort, larger rear stabilizer bar with stiffer bushings, IROC-Z ex-
terior decals and interior dash badge, and a thinner two-color lower
body stripe.
`Tuned Port Injection' (TPI) motors introduced. Corvette got 350
version (L98) and Camaro got 305 version (LB9); available in Z-28 or
IROC-Z. LB9 was available with automatic only. L69 H.O. 305 was only
available in IROC and only with 5 speed manual. L69 production was
restricted half-way (April 26, 1985) through the model year.
MFI V-6 LB8 motor introduced to replace carbureted LC1 V-6. Had simi-
lar port injection as LB9 TPI V-8.
All manual transmissions now 5 speeds.
7.5 inch rear end dropped and replaced with a new 7.625 (7 5/8) inch
rear end for all Camaros.
G92 (performance axle ratio) only available on IROC-Z for 1985.
1986
Sport Coupe restyled and upgraded. New lower body striping, black head-
lamp pockets, black mirrors, and F41 suspension calibration standard. New
silver 15x7 (up from the 14x7 rally wheel) steel 5 spoke rally wheels
became standard equipment on the Sport Coupe. Sport Coupe also got the
previous year's Z28 taillights with the horizontal black separator bar.
The Berlinetta model was discontinued early in the year.
Late in the 1986 model year, the 85mph speedometer in the Z28 and IROC-Z
were replaced with a new 145 mph unit. All 1986 Camaros had the newly
required CHMSL (center high mounted stop light) mounted externally on the
leading edge of the hatchback glass. This was the only year Z28's and
IROC-Z's had the CHMSL mounted here. Fog lamps were now available on
the Sport Coupe and Berlinetta, and the fog lamp/`CAMARO' front grille
assembly of the IROC was now available on the regular Z28. New clear
coat/base coat paint was adopted this year.
The original 215hp 305 TPI motor came out in 1985 available both
in the Z28 and IROC-Z. The motor was detuned for 1986 losing 25hp
due to a cam change. Torque was increased though, from 275 to
285. Automatic transmissions were required on all 1985/1986 TPI
powered cars.
1985 vs. 1986 305 TPI cams:
1985 305 TPI 1986 305 TPI
215 hp / 275 lbft 190 hp / 285 lbft
Tach: yellow 5000 Tach: yellow 4500
red 5500 red 5000
Lift: intake .404 .350
exhaust .415 .385
Duration: intake 320 307
(crank) exhaust 320 311
All 305 TPI (LB9) motors (1985-1992) came with one of two basic cam
grinds. An easy way to identify the type of cam on an LB9 car is to
look at the tach: the lesser cams have a yellow line at 4500 and red
line at 5000; the hotter cams have a yellow line at 5000 and red line
at 5500. See chart at end of chronology for more cam info.
LG4 305 V-8 cars got electric cooling fan.
G92 performance axle ratio available only on Z28 and IROC-Z.
Records show that 74 L69 (5.0 liter H.O.) Camaros were built. The L69
is shown as being available in the 1986 Camaro brochure, but it was put
on strict restriction.
Records also show that 50 1986 350 (5.7) IROC's were built. These cars
were built primarily for testing and were the ones we saw tested by the
automotive press late in 1986. These 350 IROC's (being 1986's) had the
externally mounted third brake light on the hatch glass and the pre-1987
head/edge mounted valve cover design. The 350 in the IROC-Z differed from
the Corvette 350 TPI in that the IROC-Z 350 TPI had the regular Camaro
valve covers, iron heads, and the IROC-Z exhaust manifolds At the last
minute it was decided that the 1986 350 IROC woud not be available.
Fortunately they finally did decide to produce the 350 IROC in 1987.
1987
The Sport Coupe got restyled rally wheels (unique to this year), new
lower body stripes, and argent headlamp pockets.
The dropped Berlinetta model was replaced with the new 'LT' option for
the Sport Coupe. The LT option incorporated most of the Berlinetta's
equipment except the electronic instrumentation.
Late in the model year, RS Camaro was introduced for California and
with V-6 power only. RS had Z28 style valances that were painted body
color (like IROC) and had no lower body stripes. The RS got the 15 inch
5 spoke aluminum Z28 wheel which were painted to match body color.
1987 RS Camaro came only in red, white, or black.
Delco-Bose sound systems and leather interior were available for the
first time and were available on all Camaro models
The CHMSL moved to the spoiler (which was slightly increased in size)
on all cars equipped with a spoiler (all Z28's, IROC-Z's; spoiler
optional on LT and Sport Coupe). Lower body stripes on Z28 still num-
bered 4, but gap between the top three stripes was removed.
Camaro convertible was introduced for the first time since 1969 as a
regular production option. The convertible was available on the Sport
Coupe, Sport Coupe LT, Z28, and IROC-Z. The new 350 TPI motor was not
available in the convertible however. The convertible conversion was
performed on t-top equipped (t-top models have extra bracing) Camaros by
ASC. Only 1,007 convertibles were produced this first year of production.
1987 was the 20th anniversary of the Camaro and the convertibles were
considered the anniversary editions and were signified by a special dash
badge that read `20th Anniversary Commemorative Edition'. G92 performance
axle ratio and J65 four wheel disc brakes were available this year on the
IROC-Z convertible.
1987 was the last year for Camaros produced at the Norwood Ohio plant;
the original Camaro Plant.
The 350 TPI and 5 speed 305 TPI combinations were finally available on
the IROC-Z. The 350 was only available in the IROC-Z and only with an
automatic transmission. The exterior differed in appearance only by
`5.7 Tuned Port Injection' badges rather than `Tuned Port Injection'
badges. The TPI 350 motor was not visually distinguishable from the
TPI 305. A few things can be used to disinguish a 350 TPI from a 305 TPI
(other than the badges, which are often changed to sell a 305 TPI as a
350 TPI). All TPI 350 IROC-Z's (1987-1990) and all TPI 350 Z28's
(1991-1992) had automatic transmissions and rear disc brakes. The eighth
digit of the VIN is and `8' for 350 TPI's and an `F' for 305 TPI's. The
service parts identification list in the center console glovebox will list
the code B2L for a 350 TPI, LB9 for a 305 TPI. The under hood sticker
should list the motor as a 5.7 liter rather than a 5.0 liter. All TPI
350 (1987-1992) Camaros had a tach with yellow at 5000 and red at 5500.
In 1987, the 215hp 305 TPI motor returned on the newly available
5 spd / 305 TPI combination only. Torque was rated now at 295, up
from 275 in 1985. Automatic 305 TPI's still got the weaker cam and
190hp rating.
All 5 spd 305 TPI Camaros came with the better cam (25hp advantage)
until 1990 when G92 HAD to be specified to get the better cam in
the 5 spd 305 TPI.
Roller lifters and new valve cover/head design on V-8 Camaros. Valve
covers featured new sealing and mounting through center of cover. Heads
featured new raised lip for improved valve cover sealing.
G92 and L98(B2L) cars finally got the Borg-Warner HD 7.75 inch four pinion
rear end, produced by GM Holden's Limited of Australia (Firebird WS6 cars
went to this unit in 1986). These units can be identified by their 9 bolt
(rather than 10) differential cover that has a rubber plug. The Borg-Warner
logo is also cast into the bottom of the differential case. This rear axle
came with tapered rather than straight roller bearings and a cone-clutch
rather than disc-clutch limited slip unit. These units came painted black
from the factory while most others were bare metal.
G92 for 1987 required the following options:
* 5.0 TPI (LB9)
* Limited slip differential (G80)
* Rear disc brakes (J65)
* Engine oil cooler (KC4)
G92 (performance axle ratio) available only on IROC-Z with 5.0 TPI (LB9).
G92 was available on IROC-Z convertible in 1987. All 1987 350 TPI (B2L)
IROC-Z's came standard with 3.27 BW rear end and thus did not have G92
code; this changed in 1988 however when a 2.77 BW rear was standard and
G92 had to be specified to get the 3.27. All 1987 350 TPI (B2L) IROC-Z's
required J65 rear disc brakes, G80 limited slip differential, and KC4
engine oil cooler.
1988
LT option dropped. Z28 model dropped and replaced by IROC-Z (although
interior dash badge still read `Z28 IROC-Z', rather than just `IROC-Z'
as on exterior badges). The 16 inch wheels that had been standard
equipment on the IROC were restyled and now became an extra cost
option for the IROC. The standard IROC wheel was the old 15x7 inch
aluminum 5 spoke Z28 wheel and this wheel was also now standard on
the Sport Coupe. In 1988 only, this wheel rather than having only the
recessed areas painted gold or silver, was completely painted gold or
silver (for that `double-dunked' in paint look - ugh). The IROC-Z door
decals were moved from the front of the doors to the rear. Z28 exterior
badges were replaced with IROC-Z badges. The lower-body stripe was
reversed changing from black on bottom with trim color above, to black
on top with trim color below, now with a gap (of body color) between the
two stripes. Newly available DX3 stripe delete option eliminated IROC-Z
decals and stripes altogether.
Sport Coupe took on appearance of defunct Z28 except: `CAMARO' rather
than `Z28' exterior badges; body colored headlight pockets rather than
black; and gold or silver wheel center caps rather than black; the reg-
ular hood rather than the louverd hood; and the 1985-1987 IROC two tone
lower body stripe rather than the four-color Z28 body stripe. This was
the last year for the Sport Coupe and was the only year for this partic-
ular appearance. Early in the year, Sport Coupes came with a `shorty'
rear wing rather than a spoiler. This ungainly addition was discontinued
and replaced with the standard spoiler midyear.
Serpentine belt now on Camaro V-8's. Long-lived LG4 carbureted 305
replaced by the new LO3 throttle body injection 305. All Camaro TPI
motors bumped up 5 hp due to slightly higher lift/longer duration cam
profiles, additional valve seat angle, exhaust port/exhaust manifold
changes.
G92 (performance axle ratio) still available on IROC-Z convertible in
1988. G92 code was now available on the 350 (B2L) IROC-Z and now had
to be specified to get 3.27 rear end (was standard in 1987) as a 2.77
rear was now standard on the 5.7 TPI. J65 rear disc brakes, G80 limited
slip differential, and KC4 engine oil cooler were still required on
all 5.7 and G92 cars.
Secret showroom stock racing 1LE option (option level 0 IROC-Z) first
available. Only 4 produced.
1989
Sport Coupe dropped, replaced by returning RS model. RS now avail-
able with LO3 V-8. Headlight pockets on RS no longer painted black.
Camaros now came with rear shoulder belts. The Corvette PASS-KEY
ignition lock system was adopted for all Camaros.
The base 15 inch IROC wheel was restyled to have the appearance
of the optional 16 inch wheel. P245/50ZR-16 tires replaced the
P245/50VR-16 tires on the IROC-Z when equipped with the 16 inch
wheels. TPI motors got better performing `Multec' fuel injectors.
The exterior of the TPI plennum changed slightly: the ridges on
top of the plennum did not extend as far forward. Calibration
refinements eliminated the cold start injector.
Four wheel disc optioned (J65) IROC-Z's rear brakes were increased
in size from 10.5 inch rotors to 11.65 inch rotors with PBR Austral-
ian built aluminum calipers and more reliable parking brake actuat-
ors. Front discs still had 10.5 inch rotors with Delco-Moraine
single piston calipers.
G92 option included N10 performance exhaust system (dual catalytic
converters) which upped hp by 10 on cars so equipped. For 1989,
G92 also required the following options:
* 5.7 TPI motor (B2L) or 5.0 TPI motor (LB9) with 5 speed (MM5) manual.
* 16 inch wheels (N96)
* P245/50ZR-16 Goodyear Gatorback tires (QLC)
* Limited slip differential (G80)
* Rear disc brakes (J65)
* Engine oil cooler (KC4)
G92 and J65 (rear disc brakes) no longer available on IROC-Z convertible.
G92 and J65 (rear disc brakes) no longer available on LB9 automatic
IROC-Z.
1LE performance package option (option level 0 IROC-Z) became more
well-known. 1LE package was obtained by ordering the following:
* Level 1 IROC-Z with 5.0 TPI engine with 5 speed or 5.7 TPI engine
* Optional axle ratio (G92) (305/3.45, 350/3.27) and its required options.
* Air conditioning delete (C41) (standard heater)
Then the 1LE performance package was installed consisting of:
* Fog lamp delete
* Aluminum driveshaft (JG1)
* Performance exhaust system (N10) (dual catalytic converters)
* Special deflected disc shocks
* Aluminum spare wheel with smaller spare tire (N64)
* Larger (11.86 inch) front rotors with Girlock or PBR Australian
built HD front dual piston aluminum calipers
* Special swinging fuel pickup in gas tank and special 18 gallon
baffled fuel tank for fuel pickup down to .5 gallon reserve to
prevent fuel starvation in hard cornering.
* Some came with special 16x8 light alloy mesh wheels. (XWL)
111 1989 1LE IROC-Z's were produced.
1990
The 1990 model year was only a half year of production. Due
to the termination of the Chevrolet IROC contract, no IROC-Z's
were produced after 12/31/1989. Instead, the 1991 Camaros were
introduced early during last half of the normal 1990 model year.
1990 IROC's and RS's are easily identifiable: 1990 was the first
year for the updated interior which included drivers side airbag,
redesigned instrument panel, yellow lettering on dash, rounded
controls, etc. So 1990 IROC's are the only IROC's with the new
interior. 1990 RS's are the only RS's with the new interior and
the older valances (before the new `scooped' side valances).
The LB8 2.8 liter V-6 was replaced by an increased displacement 3.1
liter LH0 V-6.
In 1990, the base engine for the IROC was finally the LB9 TPI 305 rather
than the base LO3 V-8. However, G92 had to be specified now to get
the better cam/230hp LB9 motor in the 5 speed LB9 IROC-Z. Previously,
all 5 speed LB9 IROC-Z's got the higher output LB9. One other dif-
ference between a 1989 5.7 IROC and a 1990 5.7 IROC are the pistons.
The 350 (only) received lighter weight pistons thus a slight horsepower
increase of 240 (1989) to 245 (1990). In 1990, TPI Camaros switched
from MAF air metering systems to MAP systems. This eliminated the mass
airflow (MAF) sensor.
IROC-Z convertible now came standard with 16 inch wheels and P245/50ZR-16
tires.
G80 limited slip differential became standard equipment on IROC-Z.
The Borg-Warner HD rear end was dropped and replaced with the old 7.625
(7 5/8) inch rear end. Because the Borg-Warner axles were no longer
being used for the G92 option, optional axle ratios changed slightly:
LB9 305 TPI 5 speed went from 3.45 (1989) to 3.42 (1990) and the B2L
350 TPI went from 3.27 (1989) to 3.23 (1990).
Content of G92 was expanded and purchased as a `performance package'
rather than requiring other options. G92 could be ordered two ways:
with or without air conditioning. Ordering G92 `without air condition-
ing' (C41 standard heater) added the 1LE performance package. G92
performance packages were only available with B2L or LB9/5 speed.
All 350 IROC-Z's were required to have one of the G92 packages in 1990.
G92 with air conditioning (C60):
* Optional axle ratio (305/3.42, 350/3.23)
* Rear disc brakes (J65)
* Performance exhaust system (N10) (dual catalytic converters)
* Engine oil cooler (KC4)
* 5.0 liter TPI (LB9) with 5 speed gets revised cam for 230hp rating.
G92 with out air conditioning (C41) in addition to above adds
1LE performance package consisting of:
* Fog lamp delete
* Aluminum driveshaft (JG1)
* Aluminum spare wheel with smaller spare tire (N64)
* Larger (11.86 inch) front rotors and PBR Australian built HD
front dual piston aluminum calipers
* Special swinging fuel pickup in gas tank and special 18 gallon
baffled fuel tank for fuel pickup down to .5 gallon reserve to
prevent fuel starvation in hard cornering
The 1989 1LE special deflected disc shocks were dropped for the 1990
1LE IROC-Z and standard IROC-Z gas shocks were used.
34 1990 1LE LB9 (305 TPI) IROC-Z's were built. 28 1990 1LE B2L (350 TPI)
IROC-Z's were built.
1991
Z28 name returns, IROC-Z dropped. All lower valances redesigned.
Side valances had scoops in front of each wheel (like Mustang GT).
Z28 got big Ferrari F40 style rear wing. On the Z28, `CAMARO' on
the front license plate panel was replaced with the bow-tie emblem.
The hood louvers on the previous year's IROC were replaced by
hood `power blisters' on the Z28. Engine designations were removed
from side valance badging and only appeared on rear bumper.
The standard wheel for the Z28 was a newly styled 16 inch wheel. Standard
tires for the Z28 were P235/55R-16 tires; P245/50ZR-16 tires were optional
on the Z28, and standard on 350 Z28 and Z28 convertible.
RS was available for the first time with 16 inch wheels. Tires for the 16
inch wheels on the RS were P235/55R-16. RS also got grid taillights to
match Z28. The CHMSL was moved from the spoiler to the inside leading
edge of the hatchback glass. The slightly smaller non-CHMSL spoiler from
1982-1986 replaced the CHMSL spoiler on the RS.
G92 packages with air conditioning (C60) and without air conditioning
(C41/1LE) still available on Z28. All 350 Z28's were required to have one
of the G92 packages in 1991. G92 was not available on the Z28 convertible
(as was the case with the previous year's IROC-Z convertible).
289 1991 1LE LB9 (305 TPI) Z28's were built. 175 1991 1LE B2L (350 TPI)
Z28's were built.
B4C `special service' police package became available to law enforcement
agencies only. Cars were RS coupes with Z28 5.0 TPI or 5.7 TPI drivetrains
and Z28 suspensions. These cars came equipped with the 16 inch wheels and
P245/50-ZR16 tires, engine oil cooler, rear disc brakes, and limited slip
axle. Midyear, the 1LE 11.86 inch front brakes and HD calipers became
optional for the B4C. This package was the only way to get air condition-
ing and the HD front brakes. There were 592 1991 B4C Camaros built.
1992
25th anniversary of Camaro and last year for the 3rd generation Camaro.
1992 also marked the end of Camaros produced at the Van Nuys plant (the
only Camaro producing plant since the Norwood plant closed at the end
of the 1987 model year). All Camaros had 25th anniversary badge on dash.
`Heritage Edition' package available on all Camaros. Package included
first generation Camaro style hood and rear deck stripes, body colored
grille, black headlamp pockets, and a 25th anniversary badge on rear
spoiler (RS) or hatchback rear edge (Z28). Initially Heritage package
only available as white car with red stripes; black car with red stripes;
or red car with black stripes. Mid-year, additional Heritage Edition
colors available: polo green car with gold stripes (this combination
also got gold badges and gold accent wheels); and purple haze car with
silver stripes.
Special 25th anniversary `Collector's Edition' Camaro was planned, but
then dropped. There were to be 602 (same as the number of '67 Z28's)
produced. Only two prototypes were completed however. The Collector's
Edition Camaro started as a white Heritage Edition RS Camaro (with
black stripes). Then the B4C police package was added, and then it
was equipped with the Corvette L98 5.7 aluminum head motor, fitted with
siamesed intake runners and tubular headers. This brought the horsepower
rating up to 270. The car was also equipped with a ZF 6-speed and GTA
black `lace' 16x8 wheels.
Dash badge on the RS now read `RS' rather than `CAMARO'.
`Tuned Port Injection' disappeared from the TPI throttle body cover.
Mid-year, valve covers on TPI motors changed from silver to black
(like LO3 V8). Also, at some point near the end of the production
year, the traditional smooth-appearance Camaro TPI runners were
replaced with rough, cast-appearance TPI runners (like on the Cor-
vette L98). These runners were possibly old Corvette stock being
used up on the Z28s since the Corvette's L98 was replaced by the
LT1 in 1992.
Z28 convertible came only with P235/55R-16 tires for 1992.
There were 705 1992 1LE Camaros built.
HD calipers and 11.86 front brakes became standard on the B4C special
service package. There were 589 1992 B4C Camaros built.
DRIVETRAIN INFORMATION
Yr Modl Tran. Engine CR Disp. HP Torque In- Manual Automatic
code/type duct. std. opt. std. opt.
(G92) (G92)
--------------------------------------------------------------------------------
82 SC A3 LG4 V8 8.6:1 5.0 (305) 145@4000 240@2000 4V ---- ---- 2.73 ----
82 Brln A3 LG4 V8 8.6:1 5.0 (305) 145@4000 240@2000 4V ---- ---- 2.73 ----
82 Z28 M4,A3 LG4 V8 8.6:1 5.0 (305) 145@4000 240@2000 4V 2.73 ---- 2.73 ----
82 Z28 M4,A3 LU5 V8 9.5:1 5.0 (305) 165@4200 240@2400 CFI 3.23 ---- 2.93 3.23
--------------------------------------------------------------------------------
83 SC M5,A4 LG4 V8 8.6:1 5.0 (305) 150@4000 240@2400 4V 3.23 3.73 3.08 ----
83 Brln M5,A4 LG4 V8 8.6:1 5.0 (305) 150@4000 240@2400 4V 3.23 3.73 3.08 ----
83 Z28 M5,A4 LG4 V8 8.6:1 5.0 (305) 150@4000 240@2400 4V 3.23 3.73 3.23 ----
83 Z28 A4 LU5 V8 9.5:1 5.0 (305) 175@4200 250@2800 CFI ---- ---- 2.93 3.23
83 Z28 M5 L69 V8 9.5:1 5.0 (305) 190@4800 240@3200 4VHO 3.73 ---- ---- ----
--------------------------------------------------------------------------------
84 SC M5,A4 LG4 V8 8.6:1 5.0 (305) 150@4000 240@2400 4V 3.23 3.73 3.08 ----
84 Brln A4 LG4 V8 8.6:1 5.0 (305) 150@4000 240@2400 4V ---- ---- 3.08 ----
84 Z28 M5,A4 LG4 V8 8.6:1 5.0 (305) 150@4000 240@2400 4V 3.23 3.73 3.23 ----
84 Z28 M5,A4 L69 V8 9.5:1 5.0 (305) 190@4800 240@3200 4VHO 3.73 ---- 3.42 ----
--------------------------------------------------------------------------------
85 SC A4 LG4 V8 9.5:1 5.0 (305) 155@4200 245@2000 4V ---- ---- 3.08 ----
85 Brln A4 LG4 V8 9.5:1 5.0 (305) 155@4200 245@2000 4V ---- ---- 3.08 ----
85 Z28 M5,A4 LG4 V8 9.5:1 5.0 (305) 155@4200 245@2000 4V 3.23 ---- 3.08 ----
85 Z28 A4 LB9 V8 9.5:1 5.0 (305) 215@4400 275@3200 TPI ---- ---- 3.23 ----
85 IROC M5,A4 LG4 V8 9.5:1 5.0 (305) 155@4200 245@2000 4V 3.23 ---- 3.23 ----
85 IROC M5 L69 V8 9.5:1 5.0 (305) 190@4800 240@3200 4VHO 3.73 ---- ---- ----
85 IROC A4 LB9 V8 9.5:1 5.0 (305) 215@4400 275@3200 TPI ---- ---- 3.23 3.42
--------------------------------------------------------------------------------
86 SC M5,A4 LG4 V8 9.5:1 5.0 (305) 155@4200 245@2000 4V 2.73 ---- 2.73 ----
86 Brln A4 LG4 V8 9.5:1 5.0 (305) 155@4200 245@2000 4V ---- ---- 2.73 ----
86 Z28 M5,A4 LG4 V8 9.5:1 5.0 (305) 165@4400 250@2000 4V 3.23 3.73 2.73 ----
86 Z28 M5 *L69 V8 9.5:1 5.0 (305) 190@4800 240@3200 4VHO 3.23 3.73 ---- ----
86 Z28 A4 LB9 V8 9.5:1 5.0 (305) 190@4000 285@2800 TPI ---- ---- 2.73 3.23
86 IROC M5,A4 LG4 V8 9.5:1 5.0 (305) 165@4400 250@2000 4V 3.23 3.73 2.73 ----
86 IROC M5 @L69 V8 9.5:1 5.0 (305) 190@4800 240@3200 4VHO 3.23 3.73 ---- ----
86 IROC A4 LB9 V8 9.5:1 5.0 (305) 190@4000 285@2800 TPI ---- ---- 2.73 3.42
86 IROC A4+L98 V8 9.5:1 5.7 (350) 220@4200 320@3200 TPI ---- ---- 3.27*----
*only 74 produced +only 50 produced *Borg-Warner rear axle
--------------------------------------------------------------------------------
87 SC M5,A4 LG4 V8 9.3:1 5.0 (305) 165@4400 245@2800 4V 3.23 ---- 2.73 ----
87 LT A4 LG4 V8 9.3:1 5.0 (305) 165@4400 245@2800 4V ---- ---- 2.73 ----
87 Z28 M5,A4 LG4 V8 9.3:1 5.0 (305) 170@4400 250@2800 4V 3.23 ---- 2.73 ----
87 Z28 A4 LB9 V8 9.3:1 5.0 (305) 190@4000 295@3200 TPI ---- ---- 2.73 ----
87 Z28 M5 LB9 V8 9.3:1 5.0 (305) 215@4400 295@3200 TPI 3.08 ---- ---- ----
87 IROC M5,A4 LG4 V8 9.3:1 5.0 (305) 170@4400 250@2800 4V 3.23 ---- 2.73 ----
87 IROC A4 LB9 V8 9.3:1 5.0 (305) 190@4000 295@3200 TPI ---- ---- 2.73 3.23
87 IROC M5 LB9 V8 9.3:1 5.0 (305) 215@4400 295@3200 TPI 3.08 3.45* ---- ----
87 IROC A4 L98 V8 9.3:1 5.7 (350) 225@4400 330@2800 TPI ---- ---- 3.27*----
*Borg-Warner rear axle
--------------------------------------------------------------------------------
88 SC M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4000 255@2400 TBI 3.08 ---- 2.73 ----
88 IROC M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4000 255@2400 TBI 3.08 ---- 2.73 ----
88 IROC A4 LB9 V8 9.3:1 5.0 (305) 195@4000 295@2800 TPI ---- ---- 2.73 3.23
88 IROC M5 LB9 V8 9.3:1 5.0 (305) 220@4400 290@3200 TPI 3.08 3.45* ---- ----
88 IROC A4 L98 V8 9.3:1 5.7 (350) 230@4400 330@3200 TPI ---- ---- 2.77*3.27*
*Borg-Warner rear axle
--------------------------------------------------------------------------------
89 RS M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4400 255@2400 TBI 3.08 ---- 2.73 ----
89 IROC M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4400 255@2400 TBI 3.08 ---- 2.73 ----
89 IROC A4 LB9 V8 9.3:1 5.0 (305) 195@4000 295@2800 TPI ---- ---- 2.73 ----
89 IROC M5 LB9 V8 9.3:1 5.0 (305) 220@4400 290@3200 TPI 3.08 ---- ---- ----
89 IROC M5 LB9 V8 9.3:1 5.0 (305) 230@4600 300@3200 TPI ---- 3.45* ---- ----
89 IROC A4 L98 V8 9.3:1 5.7 (350) 230@4400 330@3200 TPI ---- ---- 2.77*----
89 IROC A4 L98 V8 9.3:1 5.7 (350) 240@4400 345@3200 TPI ---- ---- ----*3.27
*Borg-Warner rear axle
--------------------------------------------------------------------------------
90 RS M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4000 255@2400 TBI 3.08 ---- 2.73 ----
90 IROC M5,A4 LB9 V8 9.3:1 5.0 (305) 210@4400 285@3200 TPI 3.08 ---- 2.73 ----
90 IROC M5 LB9 V8 9.3:1 5.0 (305) 230@4400 300@3200 TPI ---- 3.42 ---- ----
90 IROC A4 L98 V8 9.3:1 5.7 (350) 245@4400 345@3200 TPI ---- ---- ---- 3.23
--------------------------------------------------------------------------------
91 RS M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4000 255@2400 TBI 3.08 ---- 2.73 ----
91 Z28 M5,A4 LB9 V8 9.3:1 5.0 (305) 205@4200 285@3200 TPI 3.08 ---- 2.73 ----
91 Z28 M5 LB9 V8 9.3:1 5.0 (305) 230@4200 300@3200 TPI ---- 3.42 ---- ----
91 Z28 A4 L98 V8 9.3:1 5.7 (350) 245@4400 345@3200 TPI ---- ---- ---- 3.23
--------------------------------------------------------------------------------
92 RS M5,A4 LO3 V8 9.3:1 5.0 (305) 170@4000 255@2400 TBI 3.08 ---- 2.73 ----
92 Z28 M5,A4 LB9 V8 9.3:1 5.0 (305) 205@4200 285@3200 TPI 3.08 ---- 2.73 ----
92 Z28 M5 LB9 V8 9.3:1 5.0 (305) 230@4200 300@3200 TPI ---- 3.42 ---- ----
92 Z28 A4 L98 V8 9.3:1 5.7 (350) 245@4400 345@3200 TPI ---- ---- ---- 3.23
--------------------------------------------------------------------------------
Engine codes: (8th digit of VIN)
H LG4
7 LU5
E L03
G L69
F LB9
8 L98
--------------------------------------------------------------------------------
Drivetrain list of third generation Camaros (no v8)
Rear Axle Ratio
Yr Modl Tran. Engine CR Disp. HP Torque In- Manual Automatic
code/type duct. std. opt. std. opt.
(G92) (G92)
--------------------------------------------------------------------------------
82 SC M4,A3 LQ8*L4 8.2:1 2.5 (151) 90@4000 132@2800 2V 3.42 ---- 2.93 3.08
82 SC M4,A3 LQ9 L4 8.2:1 2.5 (151) 90@4000 132@2800 TBI 3.42 ---- 2.93 3.08
82 SC M4,A3 LC1 V6 8.5:1 2.8 (173) 102@4800 142@2400 2V 3.23 ---- 3.08 ----
82 Brln M4,A3 LC1 V6 8.5:1 2.8 (173) 102@4800 142@2400 2V 3.23 ---- 3.08 ----
*Canada and overseas - only 921 produced
--------------------------------------------------------------------------------
83 SC M4,A3 LQ8*L4 8.2:1 2.5 (151) 92@4000 134@2800 2V 3.42 ---- 3.08 3.23
83 SC M5,A4 LQ8*L4 8.2:1 2.5 (151) 92@4000 134@2800 2V 3.73 ---- 3.42 ----
83 SC M4,A3 LQ9 L4 8.2:1 2.5 (151) 92@4000 134@2800 TBI 3.42 ---- 3.08 3.23
83 SC M5,A4 LQ9 L4 8.2:1 2.5 (151) 92@4000 134@2800 TBI 3.73 ---- 3.42 ----
83 SC A3 LC1 V6 8.5:1 2.8 (173) 107@4800 145@2100 2V ---- ---- 3.08 ----
83 SC M5,A4 LC1 V6 8.5:1 2.8 (173) 107@4800 145@2100 2V 3.42 ---- 3.23 ----
83 Brln A3 LC1 V6 8.5:1 2.8 (173) 107@4800 145@2100 2V ---- ---- 3.08 ----
83 Brln M5,A4 LC1 V6 8.5:1 2.8 (173) 107@4800 145@2100 2V 3.42 ---- 3.23 ----
*Canada and overseas - only 156 produced
--------------------------------------------------------------------------------
84 SC M4 LQ9 L4 9.0:1 2.5 (151) 92@4000 134@2800 TBI 3.42 ---- ---- ----
84 SC M5,A4 LQ9 L4 9.0:1 2.5 (151) 92@4000 134@2800 TBI 3.73 ---- 3.73 ----
84 SC M5,A4 LC1 V6 8.5:1 2.8 (173) 107@4800 145@2100 2V 3.42 ---- 3.23 ----
84 Brln M5,A4 LC1 V6 8.5:1 2.8 (173) 107@4800 145@2100 2V 3.42 ---- 3.23 ----
--------------------------------------------------------------------------------
85 SC M5,A4 LQ9 L4 9.0:1 2.5 (151) 88@4400 132@2800 TBI 3.73 ---- 3.73 ----
85 SC M5,A4 LB8 V6 8.9:1 2.8 (173) 135@5100 165@3600 MFI 3.42 ---- 3.42 ----
85 Brln M5,A4 LB8 V6 8.9:1 2.8 (173) 135@5100 165@3600 MFI 3.42 ---- 3.42 ----
--------------------------------------------------------------------------------
86 SC M5 LQ9*L4 9.0:1 2.5 (151) 88@4400 130@2800 TBI 3.73 ---- ---- ----
86 SC M5,A4 LB8 V6 8.9:1 2.8 (173) 135@5100 160@3900 MFI 3.42 ---- 3.42 ----
86 Brln M5,A4 LB8 V6 8.9:1 2.8 (173) 135@5100 160@3900 MFI 3.42 ---- 3.42 ----
*None delivered
--------------------------------------------------------------------------------
87 SC M5,A4 LB8 V6 8.9:1 2.8 (173) 135@4900 160@3900 MFI 3.42 ---- 3.42 ----
87 LT M5,A4 LB8 V6 8.9:1 2.8 (173) 135@4900 160@3900 MFI 3.42 ---- 3.42 ----
87 RS* M5,A4 LB8 V6 8.9:1 2.8 (173) 135@4900 160@3900 MFI 3.42 ---- 3.42 ----
*RS available in only California
--------------------------------------------------------------------------------
88 SC M5,A4 LB8 V6 8.9:1 2.8 (173) 135@4900 160@3900 MFI 3.42 ---- 3.42 ----
--------------------------------------------------------------------------------
89 RS M5,A4 LB8 V6 8.9:1 2.8 (173) 135@4900 160@3900 MFI 3.42 ---- 3.42 ----
--------------------------------------------------------------------------------
90 RS M5,A4 LH0 V6 8.5:1 3.1 (191) 140@4400 180@3600 MFI 3.42 ---- 3.23 ----
--------------------------------------------------------------------------------
91 RS M5,A4 LH0 V6 8.5:1 3.1 (191) 140@4400 180@3600 MFI 3.42 ---- 3.23 ----
--------------------------------------------------------------------------------
92 RS M5,A4 LH0 V6 8.5:1 3.1 (191) 140@4400 185@3600 MFI 3.42 ---- 3.23 ----
--------------------------------------------------------------------------------
**** 1985-1990 IROC SPECIFIC INFORMATION****
1985 Iroc Z 305TPI- 0-60-6.8 1/4 15.3@90 MT 10/84 Top Speed 140
1985 Iroc Z 305 4bbl HO 7.5 15.4@89 C&D 10/84
1986 Iroc Z305TPI 7.3 15.6@89 GM data 86
1986 Iroc Z305 4bbl HO 7.3 15.5@89 Hot Rod 86 138
1987 Iroc Z350TPI 6.2 14.5@95 GM data 87 143 GM Data 87..... Road and Track 87- 149
1987 Iroc Z305TPI 6.6 14.9@95 R&T 4/87 135
1987 Iroc Z305TPI convet 8.1 16.4@85 MT 11/86
1988 Iroc Z350TPI 6.2 14.5@95 GM
1988 Iroc Z350TPI 7.2 15.6@91 MT 9/88
1988 Iroc Z305TPI 6.6 14.9@95 Perf Cars 88
1989 Iroc Z350 TPI G92 5.9 14.5@96 GM------------------------240 hp 345 lb ft torque 3.27's 145 Top Speed
1989 Iroc Z350 TPI 6.2 14.5@95 GM-------------------------230 hp 330 lb ft torque 2.77's 147 Top Speed
1989 Iroc Z350TPI 6.9 15.5@91 MT 89
1989 Iroc Z305TPI convert 7.8 16.2@84 MT 89
1990 Iroc Z350TPI 5.8 14.4@97 MT 90 Top Speed 145
1990 Iroc Z350TPI 6.4 14.8@94 Hot Road 90
1990 Iroc Z350TPI 1LE 6.1 14.8@96 MT
1990 Iroc Z350TPI 1LE 6.3 14.8@95 MT
-------------------------------------------------------------------------------------------
Engine codes: (8th digit of VIN)
2 LQ9
1 LC1
S LB8
T LH0
--------------------------------------------------------------------------------
Abbreviations:
SC - Sport Coupe
Brln - Berlinetta
2V - 2 Barrel
4V - 4 Barrel
4VHO - 4 Barrel H.O. (High Output)
CFI - Cross Fire Injection
TPI - Tuned Port Injection
TBI - Throttle Body Injection
MFI - MultiPoint Fuel Injection