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Exhaust Valvesview productsIntake Valvesview products Racing Engine Valves Supertech Racing Engine Valves are engineered for high RPM stability, durability under extreme heat, and precise airflow control. Whether you are building a boosted street car, a road-race endurance engine, or a dedicated drag application, our materials, profiles, and surface finishes deliver proven gains in reliability and performance. Key Benefits Why Choose Supertech Valves Optimized head profiles and Superfinished stems surfaces reduces friction. Unmatched overall dimentional tolerances, ensures consitency, and perfection. Multi stage heat treatments and stress relieving, improved longevity. Materials, for any build desired ( Stainless steel, Inconel, Sodium filled, Titanium) Proven in professional motorsport and demanding street builds. Build for Your Use Case Stainless Intake with Black Nitride for reduced friction and wear. Inconel/Superalloy Exhaust for extreme temperature resistant. Titanium Options (select platforms) for ultra-low mass and faster acceleration. Undercut stems and back-cut heads where flow gains are validated. OE-diameter and +Oversize selections for ported heads. Materials & Surface Finishes Stainless Steel High-grade stainless (e.g., 21-4N/EV8) with Superfinished stems. Black Nitride treatment. One Piece forged valve (non Magnetic) Inconel / Superalloy For forced induction engines, and High EGTs High temperature alloy, prevents valve warppage harden tips, swirl polish Titanium (Select) Ultra-light, high-strength valves to reduce valvetrain mass. CrN Nitride Profesional use Surface Treatments Black Nitride - lowers friction and improves wear. CrN / PVD - best used with most guides, and seats Swirl-Polish & Back-Cut - increased flow rates Geometry & Options OE, +1mm, +2mm (varies by platform). Flat, dished Undercut vs. straight stems Quality & Tolerances Precision stem roundness and surface finish. Concentricity and seat-face accuracy. 100% inspected critical dimensions. Fitment & Shopping Help Choosing Valve Size Stay at OE diameter for stock ports and pump-gas builds. Use +oversize with ported heads and when airflow testing shows a measurable gain. Always verify piston-to-valve and seat throat dimensions. Street vs. Track Use Street/NA: stainless intake + stainless exhaust. Forced Induction / Track : consider inconel exhaust and a matched spring/retainer set to control valve motion at elevated RPM and EGT. Recommended Complements Supertech valve springs and retainers matched to your cam. Precision valve guides for longevity. New stem seals and proper machine work for best results. Installation Notes Measure guide ID and hone to spec; set correct stem-to-guide clearance by material. Cut seats with proper angles and concentricity; verify contact width and placement. Check installed height, spring pressure, coil bind, and retainer-to-seal clearance. Verify piston-to-valve clearance at intended lift and cam timing. Follow appropriate break-in and re-torque procedures per platform. Shop Spring Kits Shop Retainers Tech Resources
Racing Engine Valves Supertech Racing Engine Valves are engineered for high RPM stability, durability under extreme heat, and precise airflow control. Whether you are building a boosted street car, a road-race endurance engine, or a dedicated drag application, our materials, profiles, and surface finishes deliver proven gains in reliability and performance. Key Benefits Why Choose Supertech Valves Optimized head profiles and Superfinished stems surfaces reduces friction. Unmatched overall dimentional tolerances, ensures consitency, and perfection. Multi stage heat treatments and stress relieving, improved longevity. Materials, for any build desired ( Stainless steel, Inconel, Sodium filled, Titanium) Proven in professional motorsport and demanding street builds. Build for Your Use Case Stainless Intake with Black Nitride for reduced friction and wear. Inconel/Superalloy Exhaust for extreme temperature resistant. Titanium Options (select platforms) for ultra-low mass and faster acceleration. Undercut stems and back-cut heads where flow gains are validated. OE-diameter and +Oversize selections for ported heads. Materials & Surface Finishes Stainless Steel High-grade stainless (e.g., 21-4N/EV8) with Superfinished stems. Black Nitride treatment. One Piece forged valve (non Magnetic) Inconel / Superalloy For forced induction engines, and High EGTs High temperature alloy, prevents valve warppage harden tips, swirl polish Titanium (Select) Ultra-light, high-strength valves to reduce valvetrain mass. CrN Nitride Profesional use Surface Treatments Black Nitride - lowers friction and improves wear. CrN / PVD - best used with most guides, and seats Swirl-Polish & Back-Cut - increased flow rates Geometry & Options OE, +1mm, +2mm (varies by platform). Flat, dished Undercut vs. straight stems Quality & Tolerances Precision stem roundness and surface finish. Concentricity and seat-face accuracy. 100% inspected critical dimensions. Fitment & Shopping Help Choosing Valve Size Stay at OE diameter for stock ports and pump-gas builds. Use +oversize with ported heads and when airflow testing shows a measurable gain. Always verify piston-to-valve and seat throat dimensions. Street vs. Track Use Street/NA: stainless intake + stainless exhaust. Forced Induction / Track : consider inconel exhaust and a matched spring/retainer set to control valve motion at elevated RPM and EGT. Recommended Complements Supertech valve springs and retainers matched to your cam. Precision valve guides for longevity. New stem seals and proper machine work for best results. Installation Notes Measure guide ID and hone to spec; set correct stem-to-guide clearance by material. Cut seats with proper angles and concentricity; verify contact width and placement. Check installed height, spring pressure, coil bind, and retainer-to-seal clearance. Verify piston-to-valve clearance at intended lift and cam timing. Follow appropriate break-in and re-torque procedures per platform. Shop Spring Kits Shop Retainers Tech Resources
