Chev Small Block Gen I Air Flow Research Competition Alloy Heads Complete SB 245cc Titanium Upgrades AFR - Air Flow Research AFR1138T

AFR Competition Package Cylinder heads provide the next step up in power production for just a few extra dollars. In the Competition Heads intake ports, exhaust ports and cylinder heads are all precisely 100% CNC ported for flow characteristics that can give the power you need to win. Airflow Research Completion Package Heads come complete and ready to run with AFR's proven components for maximum power and reliability. All Accessory Holes are Predrilled & Tapped! AFR is proud to introducethier 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 our best flowing 23 degrees SBC head to date and while flow numbers may reflect a very good 18 degrees 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 degrees shortblock as easily as our 227 or 235 SBC product and in fact shares indentical valve centerlines and rocker stud locations to both of those heads. However, unlike the 227 and 235 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 fact we enlarged and widened the pushrod pinch removing that checkpoint in the entrance of the intake allowing us 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