- Engines & Components
- Cylinder Heads
- AFR Small Block Chevy 245cc Eliminator NPP Race Aluminum Cylinder Heads
AFR's Largest and Most Powerful SB-Chevy 60/40 Head
AFR is proud to introduce their new 245cc NPP (no pushrod pinch) cylinder head that's best suited for max effort applications, but larger displacement 427+ pump gas engines could consider this head as well. This exciting product represents AFR's best flowing 23° Small Block Chevy head to date and while flow numbers may reflect a very good 18° head of the past, this head is still a conventional direct bolt on non-raised runner intake port configuration. It will drop on your 23° short block as easily as the 227cc or 235cc small block head. And, in fact, it shares identical valve centerlines and rocker stud locations to both of those heads.
Show More
However, unlike the 227cc and 235cc heads, this product will not accept stud mount style rockers. A shaft mount rocker system with a .180'' offset intake lifter is required. Larger diameter 3/8'' pushrods fit without additional clearancing. This is primarily due to the fact that they enlarged and widened the pushrod pinch removing that check point in the entrance of the intake allowing them to design a port with a more direct shot at the back of the valve. That also has a more consistent cross sectional area and velocity profile. In addition, this head comes standard with a 3/4'' inch deck, 2.125'' intake and 1.600'' exhaust Valves. The exhaust port and bolt pattern are raised .250'' (1/4'') over GM L98 head, this rarely affects header or chassis fitment. If you are unsure if this is the right AFR head for you, we encourage you to contact us directly to discuss your combination.
Note: These 245cc aluminum cylinder heads are standard port configuration only. Spread port exhaust configuration not available.
245cc Eliminator Race Cylinder Head Features:
- 100% CNC Ported Combustion Chambers
- 100% CNC Ported Exhaust Ports
- 100% CNC Ported Intake Ports
- Competition 5-angle Valve Job
- 245cc Intake Ports
- 80cc+ Exhaust Ports
- Bead Lock Intake Valve, 2.125'' x 5.006'' Overall Valve Length
- Bead Lock Exhaust Valve, 1.600'' x 5.024'' Overall Valve Length
- PAC Racing Valve Spring: 1.550'' OD Solid Roller Dual Valve Spring, 250 lbs on seat, .800'' maximum lift, Max RPM 8300-8500
- 10° Retainers
- 10° Bead Lock Valve Keepers
- Viton Valve Seals
- Hardened Spring Cup
- Intake Valve Seats
- Exhaust Valve Seats
- Bronze Valve Guides
- Standard Exhaust Bolt Pattern
 |