Precision Race Components 237cc Aftermarket Casting Heads & Cam Package

The Precision Race Components 237cc cylinder head is available for customers looking for the pinnacle of LS cathedral-port performance.  The 237cc port has been flow-bench-tested to flow over 339 CFM and can support everything from smaller camshaft street engines all the way to all our race engines. This package comes with your choice of TSP camshaft and hardened chromoly pushrods. Recommended for larger than stock cubic inch applications.  Minimum of 4.00" bore required!

***If you purchase a Melling oil pump you MUST use a single-roller timing set!  The Melling oil pump will not clear a double-roller timing set!***

• 237cc Fully CNC Ported Intake Runners
• 84cc Fully CNC Ported Exhaust Runners
• TSP .660 Spring Kit w/ PAC Valve Springs & Titanium Retainers
• 68cc CNC Machined Chambers
• CHE Bronze Guides
• 2.100" Hollow Stem Intake Valve / 1.600" Stainless Exhaust Valves  
• Factory Rocker Friendly!!
  

The all new 237cc cylinder head is finally available for customers looking for the pinnacle of LS cathedral port performance.   The new 237cc port has been flow bench tested to flow over 330cfm & can support everything from smaller camshaft street engines all the way to all our race engines. This cylinder head is a combination of a max effort high flowing port combined. 

4.030" Flow Plate - No Exhaust Pipe