1981 Firebird Engines

1981 Engine Firebird Specifications

                   
Engine ID Stamping
 
UPC Code Type Source Displacement (cubic Inches) Bore & Stroke

Carb

Comp
HP/RPM
Torque/RPM
VIN
Manual
Auto
Usage
LD5 V-6 Buick 231
3.80 x 3.40
2 bbl
8.0:1
115@3800
188@2000
A
  Standard Base and Esprit. Standard Formula after October 1, 1981
LS5 V-8 Pontiac 265 3.75 x 3.00 2 bbl 8.3:1 120@3600 210@1600 S     Optional Base and Esprit until January 8, 1980. Standard Formula until October 1, 1981
L37 V-8 Pontiac 301 E/C 4.00 x 3.00 4 bbl 8.1:1 150@4000 245@2000 W     Standard in Trans Am. Optional all others
LG4 V-8 Chevrolet 305 3.74 x 3.48 4 bbl 8.6:1 145@4000 230@2400 H     Optional Formula and Trans Am
LU8 V-8 Pontiac 301 Turbo 4.00 x 3.00 4 bbl 7.5:1 200@4000 340@2000 T     Optional Formula and Trans Am
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