Chevy LS1 LS6 1.620" STD 8mm Stainless Steel Exhaust Valves The Speedmaster throttle body begins

The Speedmaster throttle body begins as a billet of 6061- T6 aluminum for superior quality and is introduced to a state-of-the-art CNC machine

They weigh only 2

pulling trucks

a micro-switch for back-up lights and a neutral safety switch preventing accidental starts when in gear

Chevy LS1 LS6 1.620" STD 8mm Stainless Steel Exhaust Valves The Speedmaster throttle body beginsWhen 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.