GT1R Stage 1 Race Heads

The Race Stage 1 include a complete freshening of the cylinder heads. Heads are fully disassembled, cleaned, and inspected prior to CNC porting.  All components in the valvetrain are replaced with the best offerings from Ferrea.  The 1mm oversized Competition Plus valves, bronze  valve guides, seals, dual valve springs, seat locators, valve locks, and titanium retainers assure you are getting the best combination of performance and reliability.

The CNC porting optimizes the intake and exhaust ports for increased airflow, which improves power, torque, and boost response.  A big advantage to CNC porting vs hand porting is consistent results with equal flow in all ports, every time.  HP gains will vary based on many variables, but a Stage 1 head package with our GT1R camshafts will generally pick up in the neighborhood of 75-125hp while improving response and widening the powerband considerably.

The Race Stage 1 package has been run to over 9,500rpm and 2,000hp and is what we use in most of our GT1R Long Block packages.