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Speedmaster K1045 steel enclosed elastic dampers are tested to 12
Will not directly plug into GM column but can be connected by individually connecting wires from harness to their respective circuits
You cannot over-shift and miss a gear with Speedmaster automatic shifter
Speedmaster Aluminum cylinder heads use our "Gravity Die Cast" process
where dynamic flow and rock-steady pressure control are desired
Pontiac 326 400 455 1.660" 11/32" Stainless Steel Exhaust Valves Speedmaster K1045 steel enclosed elasticWhen 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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