Chevy LS3 1.600" STD 8mm Stainless Steel Exhaust Valves except stock equipped EGR

except stock equipped EGR

You cannot over-shift and miss a gear with Speedmaster automatic shifter

Aluminum also promotes faster heat dissipation for further cooling of your transmission

2 SFI Approved and will withstand the extreme power and rpm of your performance application

Chevy LS3 1.600" STD 8mm Stainless Steel Exhaust Valves except stock equipped EGRWhen 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.