Spotter's Guide Hood Bird Guide Color Guide

1978 Firebird Engines

                    Engine ID Stamping e
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 8.0:1 105@3200 185@2000   standard Base and Esprit
LG3 V-8 Chevrolet 305 3.74 x 3.48 2 bbl 8.4:1 145@2800* 245@2400*       optional Base, Esprit. Standard Formula
              135@3800** 240@2000**      
LM1 V-8 Chevrolet 350 4.00 x 3.48 4 bbl 8.2:1 170@3800* 280@1800*   optional Base, Esprit, and Formula
              160@3800** 260@2400**      
L78 V-8 Pontiac 400 4.12 x 3.75 4 bbl 7.7:1 180@3600 325@1600   standard Trans Am, optional Formula
W72 V-8 Pontiac 400 4.12 x 3.75 4 bbl 8.1:1 220@4000 325@2800   optional Formula and Trans Am
L80 V-8 Oldsmobile 403 4.35 x 3.39 4 bbl 7.9:1 185@3600 320@2000       In California standard Trans Am and optional Formula.