1973 Pontiac Firebird Trans Am 455 CID
Manual Transmission Engine Specifications
Engine Code | WT, WW, ZZ, ZE |
Engine RPO | L75 |
Displacement | 455 CID |
Bore x Stroke | 4.1522" x 4.121" | |
Compression Ratio | 8.0:1 | |
Horsepower @ RPM | 250@4000 |
Torque (Lb/Ft) @ RPM | 3700@2800 |
Head Casting | 7F6 |
| |
Carburetor | 4-bbl |
Carburetor - Federal | 7043273 |
Intake Manifold | 497244 |
| |
Camshaft | |
Part # | |
Lift, I/E | .410 / .414 |
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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1973 Pontiac Firebird Trans Am 455 CID
Automatic Transmission Engine Specifications
Engine Code | X7, XE, XL, XM, YA, YC, YD |
Engine RPO | L75 |
Displacement | 455 CID |
Bore x Stroke | 4.1522" x 4.121" | |
Compression Ratio | 8.0:1 | |
Horsepower @ RPM | 250@4000 |
Torque (Lb/Ft) @ RPM | 370@2800 |
Head Casting | 7F6 |
Carburetor | 4-bbl |
Carburetor - Federal | 7043262, 7043272 |
Intake Manifold | 497244 |
| |
Camshaft | |
Part # |
|
Lift, I/E | .410 / .414 |
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" |
| |
Distributor | |