AFR 245 Eliminator CNC

AFR’s 245cc NPP cylinder heads are designed for maximum-effort Small Block Chevrolet competition engines and selected 427ci-plus pump-fuel combinations. Retaining a conventional 23° valve angle and standard-height intake runners, the “No Pushrod Pinch” design widens the port around the pushrod area to reduce restriction and provide a more direct airflow path towards the intake valve.
AFR’s “No Pushrod Pinch” (NPP) design widens this area to give air a less restricted, more direct path towards the inlet valve. This leaves less room for the pushrod, which is why the correct offset shaft-rocker and lifter arrangement is required.
**AFR specifies a 0.180" offset intake lifter for its recommended shaft-rocker arrangement.