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To remain street legal with a square bore carb
The GM LS1 Modular Ram Air Intake Manifold was designed for high-performance applications where induction system height is not limited
Speedmaster piston oil ring spacers are manufactured from spring steel and install against the bottom sill of the oil ring groove
They use silicon aluminum bi-metal construction
and come in machined or polished finishes to suit your application needs
Ford FE 390 427 428 1.650" 5.450" 3/8" Stainless Steel Exhaust Valves To remain street legal withWhen 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.
