| Bore: | 4.00 |
| Stroke: | 3.00 |
| Maximum BHP: | 230 |
| Maximum Torque: | 295 |
| Firing Order: | 1-5-4-2-6-3-7-8 |
| Distributor Rotation: | Counter-clockwise |
| Idle manifold vacuum: | 17 inches Hg |
| Plug Gap: | 0.028 |
| Point Gap: | 0.017 |
| Oil Pressure: | 40 lbs. |
| Fuel Pressure: | 5 psi |
| Total timing at 4000 rpm: | 38 Degrees |
Torque Specifications
| Cylinder heads: | 70 lbs.* |
| Rod Bolts: | 25lbs. |
| Main Bolts: | 70 lbs. |
| Flywheel Bolts: | 85 lbs. |
| Manifold bolts: Intake: | 25 lbs. |
| Manifold bolts: Exhaust: | 20lbs. |
| Crank Bolt: | 90 lbs. |
Crankshaft and Bearing Secifications
| Rod journal diameter: | 2.123 |
| Clearance:> | 0.0015 |
| Main journal diameter: | 2.2485 |
| Clearance: | 0.0015 |
| Endplay: | 0.006 |
Rod Specifications
| Length: | 5.09 in. |
| Pin: | Press-in rod |
| Length: | 3.025 |
| Diameter: | 0.912 |
| Piston specifications: | stock |
| Type: | Slipper |
| Valve-to-piston clearance: | 0.001 in. |
| Skirt-to-cylinder-wall clearance: | 0.002 in. |
Valve Specifications
| Intake Diameter: | 1.78 in. |
| Seat angle: | 45 Degrees |
| Lift stock: | Intake 0.2303 in. |
| Exhaust diameter: | 1.45 in. |
| Seat angle: | 45 Degrees |
| Lift stock: | Exhaust 0.2375 in. |
| Rocker arm ratio: | 1.60:1 |
