Compression Pressure
At 155-165 RPM with throttle wide open. Lowest cylinder must not be less than 80% of highest cylinder.
| 326" 285 HP |
170-190 lbs. |
| 389" 335 & 360 HP |
170-190 lbs. |
| 389" 256 HP |
135-155 lbs. |
| All Others |
150-170 lbs. |
VALVE TAPPET CLEARANCE
| All Engines |
Zero Lash (Hydraulic Lifters) |