1978 Firebird Engines

1978 Engine Firebird Specifications

                   
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.
*rating with 4 speed manual transmission
**rating with automatic transmission
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