Pontiac 326 400 455 1.660" 11/32" Stainless Steel Exhaust Valves Designed with a drain plug

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

Keep the air entering your engine clean with our Speedmaster air cleaners

They also help to insulate the carburetor from engine heat and provide clearance for linkages

This is our top-of-the-line medium profile LowRise+ Series manifold

and include a mounting bracket

Pontiac 326 400 455 1.660" 11/32" Stainless Steel Exhaust Valves Designed with a drain plugWhen 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.