Spotter's Guide Hood Bird Guide Color Guide

1981 Firebird Engines

                    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