PRC 15-Degree 220cc As-Cast Cathedral-Port Cylinder Heads
Fully assembled Precision Race Components 220cc as-cast cathedral-port cylinder heads for stock-cube and smaller-bore LS combinations.
- 220cc intake runners
- 84cc exhaust runners
- 64cc CNC-machined chambers
- 2.045-inch stainless intake valves
- 1.600-inch stainless exhaust valves
- TSP .660-inch dual spring package with PAC springs and titanium retainers
- CHE bronze guides
- Factory rocker compatible
- Extra-thick deck surface
- Sold as a fully assembled pair
Fitment: Cathedral-port Gen 3 and Gen 4 LS engines with a minimum 3.820-inch bore. Designed for 4.8L, 5.3L, LS1, and LS2 applications using cathedral-port intake manifolds.
Important: Verify piston-to-valve clearance, pushrod length, intake-port style, compression ratio, and spring compatibility before installation. Not legal for sale or use in California on pollution-controlled vehicles.
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