1987 Pontiac Firebird
'87 Firebird body remains basically unchanged. All center high mounted stop lamps on the 1987 Pontiac Firebird was relocated to new position below spoilers. Large hood Firebird emblem disappears forever. All V8's for the 1987 Pontiac Firebird receive factory roller camshafts. Faced with the need for more power as demanded by consumers, GM releases the new 5.7L with tuned port fuel injection for the 1987 Pontiac Firebird. Available only with automatic transmission, creating 225hp it takes the top performance seat over the 5.0L. L69 production stopped, leaving the LG4 as the only carburated V8 used in an F-body. 1987 Pontiac Firebird Trans Am GTA introduced, available with the LB9 305 TPI motor or the L98 350 TPI. Gold 16" flat mesh diamond spoke wheels standard on '87 Firebird GTA, and 16" 20 slot wheel standard on 1987 Pontiac Firebird Trans Am. Formula receives 16" convex wheels only.Firebird Formula introduced, available with LG4, LB9 and L98 350 TPI motor. The earlier Trans Am "Power Bulge" hood returns on the Formula only.Wrap-around spoiler updated and now standard on 1987 Firebird Trans Am and 1987 Firebird Formula. Regular flat wing spoiler from earlier Trans Am now standard on 1987 Pontiac Firebird.
Trans Am and Formula get optional 140 mph speedometer. Trans Am GTA gets new seats with inflatable lumbar and side bolsters. GTA also receives special door panels, epoxy filled emblems, body colored ground effects, and special GTA horn button.
Yr | Model | Trans | Engine code/type |
CR | Displ. | HP | Torque | Induc- tion |
Manual std. |
Manual opt. (G92) |
Auto std. |
Auto opt. (G92) |
87 | Sport Coupe LT RS* Firebird |
M5,A4 | LB8 V6 | 8.9:1 | 2.8 (173) | 135@4900 | 160@3900 | MFI | 3.42 | —- | 3.42 | —- |
87 | LT Firebird |
A4 | LG4 V8 | 9.3:1 | 5.0 (305) | 165@4400 | 245@2800 | 4bbl | —- | —- | 2.73 | —- |
87 | IROC-Z Z28 Formula Firebird Trans Am |
M5,A4 | LG4 V8 | 9.3:1 | 5.0 (305) | 170@4400 | 250@2800 | 4bbl | 3.23 | —- | 2.73 | —- |
87 | Z28 Formula Trans Am |
A4 | LB9 V8 | 9.3:1 | 5.0 (305) | 190@4000 | 295@3200 | TPI | —- | —- | 2.73 | —- |
87 | Z28 Formula Trans Am |
M5 | LB9 V8 | 9.3:1 | 5.0 (305) | 215@4400 | 295@3200 | TPI | 3.08 | —- | —- | —- |
87 | IROC-Z Formula Trans Am GTA |
A4 | LB9 V8 | 9.3:1 | 5.0 (305) | 190@4000 | 295@3200 | TPI | —- | —- | 2.73 | 3.23 |
87 | IROC-Z Formula Firebird Trans Am |
M5,A4 | LG4 V8 | 9.3:1 | 5.0 (305) | 170@4400 | 250@2800 | 4bbl | 3.23 | —- | 2.73 | —- |
87 | Z28 Formula Trans Am |
A4 | LB9 V8 | 9.3:1 | 5.0 (305) | 190@4000 | 295@3200 | TPI | —- | —- | 2.73 | —- |
87 | IROC-Z Formula Trans Am GTA |
M5 | LB9 V8 | 9.3:1 | 5.0 (305) | 215@4400 | 295@3200 | TPI | 3.08 | 3.45* | —- | —- |
87 | IROC-Z Formula Trans Am GTA |
A4 | L98 V8 | 9.3:1 | 5.7 (350) | 225@4400 | 330@2800 | TPI | —- | —- | 3.27* | —- |
*Borg-Warner rear axle *RS available in only California |
Year | Total Production |
Firebird | Formula | Trans Am | GTA |
1987 | 88,612 | 42,058 | 13,164 | 21,788 | 11,102 |