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These cast aluminum manifolds accept square-bore carburetors and are pressure tested to ensure maximum performance
a micro-switch for back-up lights and a neutral safety switch preventing accidental starts when in gear
Speedmasterª & FAST line of EFI systems are all you need when deciding to upgrade your engine to modern electronic fuel injection
Manufactured with lightweight aluminum technology
Chevy LS1 LS6 1.620" STD 8mm Stainless Steel Exhaust Valves These cast aluminum manifolds acceptWhen 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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