Chevy BBC 454 1.880" +100 11/32" Stainless Steel Exhaust Valves and one 3mm spacer

and one 3mm spacer

These retainers are available in a variety of lock angles and sizes to suit your needs

Switch out your weak and thin factory retainer plates with Speedmaster heavy-duty bearing retainer plates and make your ride a lot safer

contributing to the overall efficiency and performance of your engine

For those with applications that require the fast and consistent action of and air shift this is exactly the shifter for you

Chevy BBC 454 1.880" +100 11/32" Stainless Steel Exhaust Valves and one 3mm spacerWhen 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.