Chrysler BB 440 1.860" +100 11/32" Stainless Steel Exhaust Valves 6" diameter ring gear

6" diameter ring gear

Available for small and large housing ends commonly found in all of the popular Ford 9"âÃú rear ends

They are CNC machined from billet 6061-T6 aluminum

Speedmaster one-piece 8620 Steel output shafts are the perfect upgrade to improve the performance of your automatic transmission

Speedmaster billet aluminum valve bodies shift quickly and incorporate an adjustable pressure regulator

Chrysler BB 440 1.860" +100 11/32" Stainless Steel Exhaust Valves 6" diameter ring gearWhen 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.