Large Bore CID LS3 (4.125")

Our CID LS3 4.125 Bore heads include:

• Our in house CNC port
• PCD surfaced
• Proprietary competition valve job
• Hand blended valve job
• TSP 660 Spring Kit
• REV 2.2 Intake Valve
• REV 1.6 Exhaust Valve

***This is our most common setup, but if this doesn’t meet your needs please call us so we can get you set up to your needs***