1970 Pontiac Firebird Trans Am 400 CID Ram Air IV
Manual Transmission Engine Specifications
Engine Code | WH |
Displacement | 400 CID |
Bore x Stroke | 4.1212" x 3.750" | |
Compression Ratio | 10.5:1 | |
Horsepower @ RPM | 370@5500 |
Torque (Lb/Ft) @ RPM | 445@3900 |
Head Casting | 614 |
| |
Carburetor | 4-bbl |
Carburetor - Federal | 7040273 |
Carburetor - Calif | 7040573 |
Intake Manifold | 9799084 |
| |
Camshaft | 9794041 |
Part # | 9794041 |
Lift, I/E | .527 / .527 |
Rocker Arm Ratio | 1.65:1 |
Duration I/E - Degrees | 308 / 320 |
Overlap - Degrees | 87 |
Intake Valve Dia - | 2.11" |
Exhaust Valve - Dia | 1.77" |
Exhaust Manifolds | R 9799721 |
Exhaust Manifolds | L 478141 |
| |
Distributor | 1112013 |
| |
1970 Pontiac Firebird Trans Am 400 CID Ram Air IV
Automatic Transmission Engine Specifications
Engine Code | XN |
Displacement | 400 CID |
Bore x Stroke | 4.1212" x 3.750" | |
Compression Ratio | 10.5:1 | |
Horsepower @ RPM | 370@5500 |
Torque (Lb/Ft) @ RPM | 445@3900 |
Head Casting | 614 |
Carburetor | 4-bbl |
Carburetor - Federal | 7040270 |
Carburetor - Calif | 7040570 |
Intake Manifold | 9799084 |
| |
Camshaft | 9779068 |
Part # | 9779068 |
Lift, I/E | .527 / .527 |
Rocker Arm Ratio | 1.65:1 |
Duration I/E - Degrees | 308 / 320 |
Overlap - Degrees | 87 |
Intake Valve Dia - | 2.11" |
Exhaust Valve - Dia | 1.77" |
Exhaust Manifolds | R 9799721 |
Exhaust Manifolds | L 478141 |
| |
Distributor | 1112013 |