Chevy LS1 LS6 1.570" STD 8mm Stainless Steel Exhaust Valves So can features such as

So can features such as full ball-bearing construction

The shifters have stamped components to ensure smooth

but both factors can be equally important in a race car

and corrosion-treated

These rockers are precision-machined to ensure consistency and ratio accuracy and have a great looking anodized finish

Chevy LS1 LS6 1.570" STD 8mm Stainless Steel Exhaust Valves So can features such asWhen 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.