IAG 800 CNC Pocket Ported Competition Cylinder Heads Package (Does NOT Include Kelford A "272" Cams, Cam Towers, Lifters & Rockers) - 2015-2021 Subaru WRX / 2015-2016 STI

IAG 800 CNC Pocket Ported Competition Cylinder Heads Package GEARED TOWARDS WEEKEND RACING Crafted with the weekend racer in mind, the IAG 800 CNC Pocket Ported Competition Cylinder Heads offer a substantial improvement in airflow compared to the IAG 600 heads. These heads are well-suited for vehicles that see occasional track use, including road racing, rally, auto-x, or drag racing, and are engineered to support up to 800 BHP with the necessary modifications. Enhanced with upgraded GSC +1mm Stainless Steel Valves, GSC Viton Valve Stem Seals, improved GSC Valve Guides, and Kelford Dual Valve Springs with Titanium Retainers, these heads deliver exceptional performance. For FA20 Heads, which have a different configuration than their EJ counterparts, the casting is divided into "lower" and "cam towers." Opting for Kelford "A" cams with the IAG 800 Cylinder Heads includes new OEM cam towers, rockers, pivots, and valve shim caps, providing a comprehensive upgrade package.   CONSTRUCTED WI