Chevy BBC 454 1.940" STD 11/32" Stainless Steel Exhaust Valves They feature extra-thick steel that's

They feature extra-thick steel that's double-welded to the ring gear for added strength and anodized for corrosion resistance

heat-treated for maximum strength

These scoops give you that classic Hilborn-style look with a polished aluminum body

They are for small and big block Chevys

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

Chevy BBC 454 1.940" STD 11/32" Stainless Steel Exhaust Valves They feature extra-thick steel that'sWhen 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.