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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
Built for performance
Speedmaster yokes allow the use of larger-than-stock U-joints for that higher horsepower application
12-point head design and a larger-than-stock shank diameter
reducing the load on all internal components
Made of durable steel
Chevy LS1 LS6 1.620" STD 8mm Stainless Steel Exhaust Valves Built for performanceWhen 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.
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