Precision Race Components As-Cast 225cc LS1/LS2 Cathedral Heads-Big Chamber

Precision Race Components presents their all-new as-cast cylinder heads with CNC-machined chambers and valve guides designed for LS1/LS2 engines that require a high-flow aftermarket cylinder head at an unbeatable price.

Here are the key features of these cylinder heads:

• As-cast design with 225cc intake runners for excellent airflow.
• CNC-machined chambers with a 68cc volume.
• Hollow stem intake valves measuring 2.065 inches and stainless exhaust valves of 1.600 inches.
• Compatibility with factory LS1 rocker arms.
• Equipped with a TSP .660 dual spring kit that includes PAC valve springs and titanium retainers.

These PRC cylinder heads are perfect for customers seeking high-flow cathedral LS heads. The intake port has been rigorously tested and can deliver over 320 cubic feet per minute of airflow. They are suitable for a wide range of applications, from smaller camshaft street engines to high-performance race engines. Additionally, the smaller chamber design enhances power in stock displacement applications.

Flow Data (4.00″ Flow Plate – No Exhaust Pipe):