GSC P-D Nissan VR30DDTT 33.3mm Head STD 101.1mm Long Intake Valve - Set of 12

Our high-performance valves, meticulously designed using advanced 3D modeling and rigorously tested, are engineered for aftermarket excellence, specifically for engines like the VR30DDTT. With features such as swirl-polished heads and optimized lengths, these valves seamlessly integrate with OEM systems, establishing a new benchmark for durability and performance.

When creating our valves we set out to create the best performance, longest lasting valves available to the aftermarket. Using advanced 3D design and simulation software, we have created a stronger and higher flowing valve head design. We flow test prototype valve heads in the specific applications to make sure we have the highest flowing valve head available on the market. With the materials used, we have less valve distortion at the face than any of the tested designs. Less distortion allows for better sealing under extreme conditions and more consistent performance throughout the life of the valve.
 

Valve Features:

• Swirl Polished Heads: Engineered for smoother airflow, optimizing the valve's aerodynamics.
• Back Cut Design: Strategically reduces valve weight, enabling higher RPMs, increased boost pressure, and accommodating more aggressive cam profiles without elevating valve spring seat pressures.
• Micro-Polished Valve Stems: Minimizes oil retention on the stem, reducing drag for a smoother motion within the guide.
• Premium Material: Intake valves are crafted from modified 21-4n stainless steel for exceptional strength and performance.
• Advanced Valve Tips: Hardened or fused with a stellite wafer tip, ensuring extended life and minimal wear, maintaining proximity to the rocker or valve tappet within 5 Rockwell C.
• Optimized Valve Tip Lengths: Meticulously adjusted for specific applications to reduce tipping and maintain proper valve train geometry, thereby streamlining valve lash adjustment during installation.
• Balanced Keeper Groove: Precisely adjusted to balance intake and exhaust spring pressures, minimizing the need for valve spring shims. This optimization maximizes performance from our spring and retainer kits.
• Compatibility: Our valves seamlessly work with OEM keeper/lock systems, and for enhanced performance, we recommend considering our upgraded keeper/lock. While not mandatory, we advise against reusing any valve lock on performance applications due to potential material grooving.
• Quality: Backed by GSC Power-Division's commitment to quality and performance.