Supertech

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...

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...

+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...

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...

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...

Intake Valve (Stainless Steel w/ Anti Friction Coating / 38.5mm - +1mm) These valves are 1MM larger than stock, great for ported street heads that don't need the huge 2.5mm oversized valves. These...