
The Story
- Loaded OEM Spec Head with Machined O-Ring Face: Ideal for high-boost setups, this head features a machined O-ring groove for improved sealing with standard head gaskets, preventing head lift under extreme pressure.
- Loaded Head with Smooth Face and HD Valve Springs: A perfect upgrade for trucks with larger turbos, tuning, or heavy towing applications, the smooth face retains stock style sealing while the heavy-duty valve springs provide improved valvetrain stability at higher RPMs.
- Loaded Head with Machined O-Ring Face and HD Valve Springs: The best of both worlds, combining the O-ringed surface for maximum sealing under extreme boost with heavy-duty valve springs to handle aggressive power levels without valve float.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
- Loaded OEM Spec Head with Machined O-Ring Face: Ideal for high-boost setups, this head features a machined O-ring groove for improved sealing with standard head gaskets, preventing head lift under extreme pressure.
- Loaded Head with Smooth Face and HD Valve Springs: A perfect upgrade for trucks with larger turbos, tuning, or heavy towing applications, the smooth face retains stock style sealing while the heavy-duty valve springs provide improved valvetrain stability at higher RPMs.
- Loaded Head with Machined O-Ring Face and HD Valve Springs: The best of both worlds, combining the O-ringed surface for maximum sealing under extreme boost with heavy-duty valve springs to handle aggressive power levels without valve float.























