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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 SUPERTECH CONFIGURATORHELP ME CHOOSE✕FIND YOUR PERFECT BUILDAnswer 3 quick questions about your build goals and we\'ll recommend the exact Supertech parts for your .Takes about 30 seconds · You can adjust any selection afterward1 BUILD PURPOSE2 HP DELIVERY3 CAM PROFILESTART GUIDED SETUPQuestion 1 of 3WHAT'S YOUR PRIMARY BUILD PURPOSE?This helps us match the right valve and sealing specifications to your use case.🏁Street & Track DaysMost PopularOccasional track use, daily-driven or weekend car🏆High Performance RacingRegular competitive events, sustained high-RPM operation⚡Drag / Time Attack / Max PerformanceHigh OutputMaximum performance, extreme heat cycles, high-output builds BackSelect an option to continueQuestion 2 of 3How is horsepower delivered?Forced induction creates significantly higher heat and pressure loads on valvetrain components.🔵Naturally AspiratedStandardNo turbo or supercharger — standard intake air🔥Forced InductionTurbocharged or supercharged — elevated heat and pressure BackSelect an option to continueQuestion 3 of 3What cam profile are you running?Higher-lift cams increase valve spring demands and affect valve guide wear rates.📐StockRecommendedFactory camshaft profile — standard lift and duration📈Mild Profile / LiftSlightly increased lift and duration for improved flow🚀High Profile / LiftAggressive cam profile for maximum airflow and power BackSelect an option to continueRecommended ConfigurationPerformance SpecStreet & Track Day Build The ideal all-rounder for high-performance street use with occasional track days. Naturally aspirated with a stock cam — triple groove stainless valves provide excellent retention without over-engineering.Key Selections Triple groove stainless valves — best street/track balance Dual valve spring kit with steel retainers Stock cam profile — factory-spec valve spring rate H-beam connecting rods for high-RPM durability Why Performance Spec? Street & Track Days + naturally aspirated + stock cam is the only combination that fits within Performance Spec tolerances — no additional heat or spring-rate demands require an upgrade. Restart Apply performance SpecRecommended ConfigurationExtreme SpecExtreme Spec Build Maximum-output configuration with full Inconel valvetrain, beryllium copper guides, and high-lift titanium spring kit. Built for forced induction with a high-lift cam — drag, time attack, or any application demanding absolute reliability under extreme conditions.Key Selections Full Inconel triple groove valvetrain — maximum heat resistance High-lift titanium retainer spring kit for aggressive cam profiles Forced induction spec — PTFE extreme stem seals Billet H-beam connecting rods and fire-ring MLS head gasket Why Extreme Spec? Forced induction combined with a high-lift cam creates thermal and mechanical loads that exceed Race Spec limits — Extreme Spec's full Inconel valvetrain and beryllium copper guides are required. Restart Apply extreme SpecRecommended ConfigurationRace SpecRace Spec Build Configured for competitive performance with Inconel exhaust valves and titanium retainers. Optimised for naturally aspirated with a stock cam — the right spec for sustained high-RPM track operation.Key Selections Triple groove stainless intake with Inconel exhaust for track durability Dual valve spring kit with titanium retainers Stock cam profile — optimised spring rate I-beam connecting rods for sustained high-RPM operation Why Race Spec? High Performance Racing demands Race Spec's Inconel exhaust valves and titanium retainer spring kit for sustained competitive operation beyond Performance Spec limits. Restart Apply race Spec
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
