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These Speedmaster valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines
Our single plane big block manifold is now available with Dominator carburetor flange
capable of withstanding valve spring load
Our rear-ends have a reputation for being tough to handle the abuse of Circle Track
Now you don't have to waste your time searching at swap meets or cleaning and painting less-than-desirable old brackets
Chevy BBC 454 2.250" +100 11/32" Stainless Steel Intake Valves These Speedmaster valve springs areWhen 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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