AFR 235cc Competition Eliminator SBC Cylinder Heads, Spread Port, 70cc Chambers, Titanium Retainers

The Best 23? Spread Port AFR Head Ever Produced!
AFR is proud to introduce the new 245 NPP (no pushrod pinch); best suited for max effort applications, but larger displacement 427+ pump gas engines could consider this head as well. This exciting product represents the best flowing 23? SBC 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? shortblock as easily as the 227cc or 235cc AFR SBC product and in fact shares identical valve centerlines and rocker stud locations to both of those heads. However, unlike the 227 and 235 cc heads, this product will not accept stud mount style rockers and a shaft mount rocker system with the proper intake offset must be used. This is primarily due to the enlarged and widened pushrod pinch removing that checkpoint in the entrance of the intake allowing AFR 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. If you are unsure if this is the right AFR head for you, we encourage you to contact us directly to discuss your combination. Drilling for centerbolt valve covers available as an option.
The exhaust ports are raised .250" over a standard GM L-98 cylinder head.

Note:
2.125 valves will require aftermarket pistons notched for valve clearance.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.