Chevy LS1 LS6 1.570" STD 8mm Stainless Steel Exhaust Valves Speedmaster camshafts are built to

Speedmaster camshafts are built to take advantage of the latest cam technology

The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine

Suits: 1-149-004 and 1-149-005 Manifolds

true-roller chains teamed up with billet steel crank and cam sprockets

*Will not work on engines w/reverse flow heads as utilized on 1992-96 LT-1 Corvette

Chevy LS1 LS6 1.570" STD 8mm Stainless Steel Exhaust Valves Speedmaster camshafts are built toWhen it's time for valves, don't cut corners. Get genuine Speedmaster stainless steel valves. They're made from a tough, stainless steel alloy and are carefully designed to increase gas flow for more power. What's more, they have hardened stem tips for durability and are swirl polished.