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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Manufactured from cast aluminum
reducing the load on all internal components
Built for performance
Speedmaster yokes allow the use of larger-than-stock U-joints for that higher horsepower application
Chevy LS1 LS6 1.620" STD 8mm Stainless Steel Exhaust Valves Manufactured from cast aluminumWhen 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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