Pontiac 326 400 455 1.660" 11/32" Stainless Steel Exhaust Valves Because they don't run off

Because they don't run off of your crank

it has a square bore carb flange instead of a spread bore

Their durable finish cleans up easily to provide lasting good looks under your hood

Designed with a drain plug for easy fluid inspection or transmission service without the mess of dropping a full pan of fluid

and have a black oxide corrosion-resistant finish

Pontiac 326 400 455 1.660" 11/32" Stainless Steel Exhaust Valves Because they don't run offWhen 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.