1975 Pontiac Firebird Trans Am 455 CID
Manual Transmission Engine Specifications
Engine Code | WX |
Engine RPO | L75 |
Displacement | 455 CID |
Bore x Stroke | 4.1522" x 4.121" | |
Compression Ratio | 7.6:1 | |
Horsepower @ RPM | 200@3500 |
Torque (Lb/Ft) @ RPM | 330@2000 |
Head Casting | 495351, 5C |
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Carburetor | 4-bbl |
Carburetor - Federal | NA |
Intake Manifold | 496140 |
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Camshaft | |
Part # | |
Lift, I/E | NA / NA |
Rocker Arm Ratio | 1.5:1 |
Duration I/E - Degrees | 273 / 289 |
Overlap - Degrees | 54 |
Intake Valve Dia - | 2.11" |
Exhaust Valve - Dia | 1.66" |
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Distributor | |
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