Stainless Steel Black Nitride Exhaust Valvesview productsChrome Exhaust Valvesview productsSodium Filled Inconel Exhaust Valvesview productsInconel Exhaust Valvesview productsTitanium Exhaust Valvesview productsUnleash every ounce of power your engine can make with Supertech’s full line of racing-grade exhaust valves. Each valve begins life as a one-piece forging and undergoes a proprietary two-step forging process that aligns grain flow for unbeatable strength. From there we apply multi-axis CNC machining, advanced heat-treat cycles for stress relief, and application-specific surface hardening or coatings. A final precision grind and our patented Superfinishing deliver mirror-smooth stems and seats for perfect sealing and minimal wear. Valve Type Why you might choose it Best For Stainless Steel Black-Nitrided Tough, high-heat tolerance and corrosion-proof stainless core with a black-nitrided surface that lowers friction, improves oil retention, and increases durability. High-performance street and endurance racing engines needing long service life. Titanium Ultra-lightweight for quicker valvetrain response and higher RPM ceilings. Treated with a durable hard coating to fight wear. Maximum-RPM race builds where every gram counts—road racing, drift, drag. Inconel Manufactured from Inconel 751, a high-nickel superalloy that shrugs off extreme exhaust-gas temperatures and thermal shock. Turbo, supercharged, and nitrous engines running very high EGTs. Also great for endurance builds. Sodium-Filled Inconel Hollow Inconel 751 stem partially filled with sodium for internal heat transfer, keeping the valve head cooler under the harshest loads. Forced-induction or endurance engines that live on the edge of thermal limits. Chrome-Plated Classic hard-chrome stem finish reduces guide wear and provides an economical durability upgrade. Budget-conscious performance refreshes and vintage restorations.
Unleash every ounce of power your engine can make with Supertech’s full line of racing-grade exhaust valves. Each valve begins life as a one-piece forging and undergoes a proprietary two-step forging process that aligns grain flow for unbeatable strength. From there we apply multi-axis CNC machining, advanced heat-treat cycles for stress relief, and application-specific surface hardening or coatings. A final precision grind and our patented Superfinishing deliver mirror-smooth stems and seats for perfect sealing and minimal wear. Valve Type Why you might choose it Best For Stainless Steel Black-Nitrided Tough, high-heat tolerance and corrosion-proof stainless core with a black-nitrided surface that lowers friction, improves oil retention, and increases durability. High-performance street and endurance racing engines needing long service life. Titanium Ultra-lightweight for quicker valvetrain response and higher RPM ceilings. Treated with a durable hard coating to fight wear. Maximum-RPM race builds where every gram counts—road racing, drift, drag. Inconel Manufactured from Inconel 751, a high-nickel superalloy that shrugs off extreme exhaust-gas temperatures and thermal shock. Turbo, supercharged, and nitrous engines running very high EGTs. Also great for endurance builds. Sodium-Filled Inconel Hollow Inconel 751 stem partially filled with sodium for internal heat transfer, keeping the valve head cooler under the harshest loads. Forced-induction or endurance engines that live on the edge of thermal limits. Chrome-Plated Classic hard-chrome stem finish reduces guide wear and provides an economical durability upgrade. Budget-conscious performance refreshes and vintage restorations.
