Valves & Valve Seats

+1MM Intake Valve (Nitride / 38.50MM) These valves are 1MM larger than stock, great for ported street heads that don't need the huge oversized valves. The black nitride valves are stainless steel valves with a multi-stage heat treatment and stress...

Exhaust Valve (Stainless Steel / Stock Size 27.5mm) These stainless valves are the highest level of sophistication in valve technology. Extremely heat resistant and designed for use in race engines that are subjected to extreme temperatures, such as...

Intake Valve (Stainless Steel / Stock Size 34mm) These stainless valves are the highest level of sophistication in valve technology. Extremely heat resistant and designed for use in race engines that are subjected to extreme temperatures, such as...

Intake Valve (Stainless Steel w/ Anti Friction Coating / 37.5mm - Stock Size) If you are replacing the factory valves but want something better without going oversized, these swirl-polished valves have all of the features of our oversized valves but...

Intake Valve (Black Nitride w/ Anti Friction Coating / 37.5mm 1mm Over) These valves are 1MM larger than stock, great for ported heads that need more flow through the valves. These stainless steel valves are lighter than the stock steel valves and...

Exhaust Valve (Black Nitride w/ Anti Friction Coating / 30.5mm - 1mm Over) These valves are 1MM larger than stock, great for ported heads that need more flow through the valves. These Black Nitride valves are lighter than the stock steel valves and...

Intake Valve Seat (20+ Lbs of Boost) 40mm Pro Valve Seats are made of Nickel Aluminum Bronze material for extra long life in performance engines. With track proven results the machine-ability, longevity, and thermal conductivity far surpass the stock...

Exhaust Valve Seat (20+ Lbs of Boost) 33mm Pro Valve Seats are made of Nickel Aluminum Bronze material for extra-long life in performance engines. With track proven results the machine-ability, longevity, and thermal conductivity far surpass the stock...

Exhaust Valve (Stainless Steel / 40mm +2mm) These are the same 40mm exhaust valves we use in our stage 5 cylinder heads. 40mm exhaust valves are designed for use in heavily ported high-performance applications only. They must be used with matching...

Intake Valve (Stainless Steel / 48mm +2mm) These are the same 48mm intake valves we use in our stage 5 cylinder heads. 48mm intake valves are designed for use in heavily ported high-performance applications only. It must be used with matching seats...