Precision Race Components presents a new cylinder head casting suitable for 4.8/5.3/LS1/LS2 engines. These are designed to match the stock valve angle of LS engines and have thicker decks, ensuring compatibility with stock piston-to-valve setups.
Origin:
- Cast, Machined, and Produced entirely in the USA.
Key Features:
- 220cc Intake Runners
- 84cc Exhaust Runners
- Bolt-on design with little to no pushrod length adjustment
- TSP .660 Spring Kit with PAC Valve Springs & Titanium Retainers
- 64cc precision-machined chambers
- CHE Bronze Guides
- 2.045″ Stainless Intake Valves and 1.600″ Stainless Exhaust Valves
- Compatible with factory rockers
- Extra thick deck surfaces for enhanced power
This new 220cc cylinder head is a superior 15-degree LS cathedral head, serving as a robust replacement for LS1/LS6/LS2 factory castings. It’s the ideal choice for those seeking a high-quality aftermarket option without changing existing components.
Flow Data:
4.00″ Flow Plate – No Exhaust Pipe
LIFT | INTAKE FLOW | EXHAUST FLOW |
.100″ | 67 CFM | 55 CFM |
.200″ | 145 CFM | 113 CFM |
.300″ | 207 CFM | 166 CFM |
.400″ | 252 CFM | 200 CFM |
.500″ | 292 CFM | 215 CFM |
.600″ | 304 CFM | 226 CFM |
.650″ | 311 CFM | 228 CFM |
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