Description
If you’re serious about maximizing LS3 performance, AFR’s fully CNC-ported cylinder heads deliver the airflow and combustion efficiency that separates built engines from stock units. These assembled heads arrive ready to bolt on, eliminating machine shop delays while providing the precision porting that higher RPM and boost applications demand. Whether you’re targeting naturally aspirated peak power or forced induction reliability, the 260cc intake runners and optimized chamber design support aggressive cam profiles and fuel mapping without compromise.
- Cylinder Head Type
- LS3 Mongoose application
- Fully CNC-ported
- Assembled and ready
- 2.165″ intake valves
- 1.600″ exhaust valves
- 260cc intake runners
- 69cc combustion chamber
- 1.270″ valve springs
- Aluminum construction
- GM LS-Series compatible
- Pair (two heads)
- Billet valve seats
- High-flow design
