Crawford's professionally hand ported high power cylinder heads come complete with a performance valve job, valve springs, and titanium retainers.

Crawford's heads limit the recommended maximum RPM to 8500, designed for faster spooling characteristics and less frictional loss compared other comparable heads offering higher RPM limits. A ready-to-go, race proven, engineered package for high power and high torque applications.

Subaru heads are priced for the pair, and are serialized by Crawford.

HISTORY:

Crawford's Race Prepped Heads are a true race bred system, proving itself with over 16 track wins within a 1 year time span. These race proven heads have sustained high RPM loads at the race track or drag strip and even set horsepower records on the OEM ECU with I-Speed USA tuning.

SPECS:

The Crawford Performance Time Attack Heads start off as brand new OEM casts. Heads are professionally built from the ground up with the following high performance parts.

- Custom hand-ported and polished heads
- New Subaru OEM castings
- 5-Angle Intake Valve Job
- 5-Angle & radiused Exhaust Valve Job
- Inconel Exhaust Valves (2,400 degrees maximum)
- Stainless Steel Intake Valves (1,800 degrees maximum)
- 4130 Chromoly Retainers
- High Power / High Torque Performance Valve Springs
- Hardened Steel Spring Platforms 

Crawford Part # -- H0102