FAS HEMI Cylinder Head Porting Service | Hellcat

The FAS HEMI Cylinder Head Porting Service is designed to maximize airflow, efficiency, and horsepower across all late-model HEMI engines. By CNC-porting the intake and exhaust runners, reshaping combustion chambers, and improving flow dynamics, we unlock the true potential of your Hellcat or naturally aspirated HEMI build.

This service is ideal for high-performance street builds, forced induction applications, and full race setups. Each set of heads is precision-machined in-house at FAS Motorsports to ensure consistency, reliability, and proven performance gains.

Key Benefits:

• Improved airflow and efficiency
• Increased horsepower potential
• Precision CNC porting & hand finishing
• Works with boosted or naturally aspirated HEMI builds
• Compatible with Hellcat, 6.4L, 6.1L, and 5.7L HEMI platforms

Service Requirements:

• Cylinder heads must be sent in bare (no valves, springs, retainers, or hardware installed).
• If heads arrive assembled, an additional disassembly fee will be charged.
• Any extra machining, resurfacing, or valve job services will incur additional cost.