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 Firebird Engine Ratings 
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Post Firebird Engine Ratings
1982 - 1992 Firebird Engine Specs

Breakdowns by year:
1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992
(The folowing HP & Torque #'s are supplied by Pontiac and actual real-world dyno results will vary)

1982:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LQ8_(4_Cyl.) 2.5L / 151 C.I. 8.2:1 90@4000 RPM 132@2800_RPM 2 Barrel Carburetor
LQ9_(4_Cyl.) 2.5L / 151 C.I. 8.2:1 90@4000 RPM 132@2800 RPM Throttle_Body_Injection
LC1____(V6) 2.8L / 173 C.I. 8.5:1 102@4800_RPM 142@2400 RPM 2 Barrel Carburetor
LG4____(V_8) 5.0L / 305 C.I. 8.6:1 145@4000 RPM 240@2000 RPM 4 Barrel Carburetor
LU5____(V_8) 5.0L / 305 C.I. 9.5:1 165@4200 RPM 240@2400 RPM Cross Fire Injection

1983:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LQ8_(4_Cyl.) 2.5L / 151 C.I. 8.2:1 92@4000_RPM 134@2800_RPM 2 Barrel Carburator
LQ9 (4 Cyl.) 2.5L / 151 C.I. 8.2:1 92@4000 RPM 134@2800 RPM Throttle_Body_Injection
LC1 (V6) 2.8L / 173 C.I. 8.5:1 107@4800_RPM 145@2100 RPM 2 Barrel Carburator
LL1 (V6) 2.8L / 173 C.I. 8.5:1 125@5400 RPM 145@2400 RPM 2 Barrel Carburator/HO
LG4 (V_8) 5.0L / 305 C.I. 8.6:1 150@4000 RPM 240@2400 RPM 4 Barrel Carburetor
LU5 (V_8) 5.0L / 305 C.I. 9.5:1 175@4200 RPM 250@2800 RPM Cross Fire Injection
L69 (V_8) 5.0L / 305 C.I. 9.5:1 190@4800 RPM 240@3200 RPM 4 Barrel Carburetor/HO

1984:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LQ9_(4_Cyl.) 2.5L / 151 C.I. 9.0:1 92@4000_RPM 134@2800_RPM Throttle_Body_Injection
LC1 (V6) 2.8L / 173 C.I. 8.5:1 107@4800_RPM 145@2100 RPM 2 Barrel Carburator
LL1 (V6) 2.8L / 173 C.I. 8.5:1 125@5400 RPM 145@2400 RPM 2 Barrel Carburator/HO
LG4 (V_8) 5.0L /305 C.I. 8.6:1 150@4000 RPM 240@2400 RPM 4 Barrel Carburetor
L69 (V_8) 5.0L /305 C.I. 9.5:1 190@4800 RPM 240@3200 RPM 4 Barrel Carburetor/HO

1985:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LQ9_(4_Cyl.) 2.5L / 151 C.I. 9.0:1 88@4400_RPM 132@2800_RPM Throttle_Body_Injection
LB8 (V6) 2.8L / 173 C.I. 8.9:1 135@5100_RPM 165@3900 RPM Multi-Port_Fuel_Injection
LG4 (V_8) 5.0L / 305 C.I. 9.5:1 155@4200 RPM 245@2000 RPM 4 Barrel Carburetor
L69 (V_8) 5.0L / 305 C.I. 9.5:1 190@4800 RPM 240@3200 RPM 4 Barrel Carburetor/HO
LB9 (V_8) 5.0L / 305 C.I. 9.5:1 215@4400 RPM 275@3200 RPM Tuned Port Injection

1986:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LB8_ (V6) 2.8L / 173 C.I. 8.9:1 135@5100_RPM 160@3900_RPM Multi-Port_Fuel_Injection
LG4/A4 (V_8) 5.0L / 305 C.I. 9.5:1 155@4200 RPM 245@2000 RPM 4 Barrel Carburetor
LG4/5-Spd_(V_8) 5.0L / 305 C.I. 9.5:1 165@4400 RPM 250@2000 RPM 4 Barrel Carburetor
L69 (V_8) 5.0L / 305 C.I. 9.5:1 190@4800 RPM 240@3200 RPM 4 Barrel Carburetor/HO
LB9 _(V_8) 5.0L / 305 C.I. 9.5:1 190@4000 RPM 285@2800 RPM Tuned Port Injection

1987:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LB8_ _(V6) 2.8L / 173 C.I. 8.9:1 135@4900_RPM 160@3900_RPM Multi-Port_Fuel_Injection
LG4/A4 (V_8) 5.0L / 305 C.I. 9.3:1 165@4400 RPM 245@2800 RPM 4 Barrel Carburetor
LG4/5-Spd_(V_8) 5.0L / 305 C.I. 9.3:1 170@4400 RPM 250@2800 RPM 4 Barrel Carburetor
LB9/A4 _(V_8) 5.0L / 305 C.I. 9.3:1 190@4000 RPM 295@3200 RPM Tuned Port Injection
LB9/5-Spd_(V_8) 5.0L / 305 C.I. 9.3:1 215@4400 RPM 295@3200 RPM Tuned Port Injection
L98 (V_8) 5.7L / 350 C.I. 9.3:1 225@4400 RPM 330@2800 RPM Tuned Port Injection

1988:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LB8_ _(V_8) 2.8L / 173 C.I. 8.9:1 135@4900_RPM 160@3900_RPM Multi-Port_Fuel_Injection
L03 (V_8) 5.0L /305 C.I. 9.3:1 170@4000 RPM 255@2400 RPM Throttle_Body_Injection
LB9/A4 _(V_8) 5.0L / 305 C.I. 9.3:1 195@4000 RPM 295@2800 RPM Tuned Port Injection
LB9/5-Spd_(V_8) 5.0L / 305 C.I. 9.3:1 220@4400 RPM 290@3200 RPM Tuned Port Injection
L98 (V_8) 5.7L / 350 C.I. 9.3:1 230@4400 RPM 330@3200 RPM Tuned Port Injection

1989:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LB8__ (V6) 2.8L / 173 C.I. 8.9:1 135@4900_RPM 160@3900_RPM Multi-Port_Fuel_Injection
L03 (V_8) 5.0L / 305 C.I. 9.3:1 170@4400 RPM 255@2400 RPM Throttle_Body_Injection
LB9/A4 (V_8) 5.0L / 305 C.I. 9.3:1 195@4600 RPM 295@3200 RPM Tuned Port Injection
LB9/5-Spd_(V_8) 5.0L / 305 C.I. 9.3:1 230@4000 RPM 300@2800 RPM Tuned Port Injection
L98 (V_8) 5.7L / 350 C.I. 9.3:1 235@4400 RPM 340@3200 RPM Tuned Port Injection
LC2 (V_6) 3.8L / 231 C.I. 8.0:1 250@4400 RPM 340@2800 RPM Sequential Fuel Injection

1990:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LH0_ _(V6) 3.1L / 191 C.I. 8.5:1 140@4400_RPM 180@3600_RPM Multi-Port_Fuel_Injection
L03 (V_8) 5.0L / 305 C.I. 9.3:1 170@4000 RPM 255@2400 RPM Throttle_Body_Injection
LB9/A4_ (V_8) 5.0L / 305 C.I. 9.3:1 210@4400 RPM 285@3200 RPM Tuned Port Injection
LB9/5-Spd_(V_8) 5.0L / 305 C.I. 9.3:1 230@4200 RPM 300@3200 RPM Tuned Port Injection
L98 (V_8) 5.7L / 350 C.I. 9.3:1 240@4400 RPM 340@3200 RPM Tuned Port Injection



1991:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LH0_ _(V6) 3.1L / 191 C.I. 8.5:1 140@4400_RPM 180@3600_RPM Multi-Port_Fuel_Injection
L03 (V_8) 5.0L / 305 C.I. 9.3:1 170@4000 RPM 255@2400 RPM Throttle_Body_Injection
LB9/A4_ (V_8) 5.0L / 305 C.I. 9.3:1 205@4200 RPM 285@3200 RPM Tuned Port Injection
LB9/5-Spd_(V_8) 5.0L / 305 C.I. 9.3:1 230@4200 RPM 300@3200 RPM Tuned Port Injection
L98 (V_8) 5.7L / 350 C.I. 9.3:1 240@4400 RPM 340@3200 RPM Tuned Port Injection


1992:
Engine Displacement Comp._Ratio Horse_Power Torque Induction_System
LH0_ _(V6) 3.1L / 191 C.I. 8.5:1 140@4400_RPM 180@3600_RPM Multi-Port_Fuel_Injection
L03 (V_8) 5.0L / 305 C.I. 9.3:1 170@4000 RPM 255@2400 RPM Throttle_Body_Injection
LB9/A4_ (V_8) 5.0L / 305 C.I. 9.3:1 205@4200 RPM 285@3200 RPM Tuned Port Injection
LB9/5-Spd_(V_8) 5.0L / 305 C.I. 9.3:1 230@4200 RPM 300@3200 RPM Tuned Port Injection
L98 (V_8) 5.7L / 350 C.I. 9.3:1 240@4400 RPM 340@3200 RPM Tuned Port Injection

1967-1972 Firebird
Year.......Cubic In. .......HP/RPM.......Torque/RPM.......Induction
1967-.... 326.......... 285/5000........359/3200.............1x4 bbl
1967-.... 400.......... 325/5200........410/3600.............1x4 bbl
1968-.... 350.......... 320/5100........380/3200.............1x4 bbl
1968-.... 400.......... 330/4800........430/3300.............1x4 bbl
1968-.... 400.......... 335/5000........430/3400.............1x4 bbl
1969-.... 350.......... 320/5100........380/3200.............1x4 bbl
1969-.... 400.......... 330/4800........430/3300.............1x4 bbl
1969-.... 400.......... 335/5000........430/3400.............1x4 bbl
1969-.... 400.......... 345/5400........440/3700.............1x4 bbl
1970-.... 400.......... 330/4800........430/3300.............1x4 bbl
1970-.... 400.......... 335/5000........430/3400.............1x4 bbl
1970-.... 400.......... 370/5500........445/3900.............1x4 bbl
1971-.... 400.......... 330/4800........430/3300.............1x4 bbl
1971-.... 455.......... 325/4400........455/3200.............1x4 bbl
1971-.... 455.......... 335/4800........480/3600.............1x4 bbl
1972-.... 400.......... 250/4400........325/3200.............1x4 bbl
1972-.... 455.......... 300/4000........415/3200.............1x4 bbl


Thu Mar 02, 2006 9:46 am
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