GSC Intake Valve 36mm Standard (Subaru EJ20 / EJ257 Turbo) GSC2012-01

GSC Power-Division Intake Valve 36mm, Single (Subaru EJ20 / EJ257 Turbo) - GSC2012-01

Improve the airflow and performance of your Subaru EJ series turbo engine with the GSC Power-Division Intake Valve. This single, high-performance valve is crafted using advanced 3D design and simulation software to create a stronger, higher-flowing valve head. Each valve is meticulously flow-tested for its specific application, guaranteeing maximum efficiency. The superior materials and design minimize valve face distortion, providing a better seal and more consistent performance throughout the life of your engine. This new line of valves is quickly becoming the standard for sport compact performance builds.

Key Features

• Designed for Intakes: Specifically engineered as a high-performance intake valve with a 36mm head diameter to maximize airflow.
• Swirl Polished Heads: Precision-polished heads promote smoother airflow over the valve, optimizing performance.
• Back-Cut Design: This feature reduces valve weight, a critical factor for high-RPM and high-boost applications, and allows for more aggressive cam profiles without needing higher valve spring seat pressures.
• Micro-Polished Stems: The valve stems feature a micro-polished finish to reduce oil retention and friction, ensuring a smoother motion within the valve guide for extended longevity.
• Advanced 21-4N Stainless Material: Constructed from a modified stainless alloy specifically chosen for intake valves, offering exceptional durability and performance.
• Hardened Tips: Tips are hardened or feature a stellite wafer for maximum resistance to wear from the rocker or tappet, extending valvetrain life.

Installation & Fitment

The GSC2012-01 is a single, standard-sized valve designed to fit Subaru EJ20 and EJ257 turbo engines. GSC has fine-tuned the valve tip lengths to ensure proper valvetrain geometry and reduce installation time by minimizing the need for extensive valve tipping during lash adjustments. The keeper groove has been adjusted to balance spring pressures, maximizing performance when used with GSC's spring and retainer kits. This valve is compatible with both OEM and upgraded keepers/locks. While not mandatory, it is highly recommended to use new valve locks for any performance application, as used locks may have material grooving from previous use.