Allstar Performance 's camshaft thrust button is designed to restrict the side-to-side movement of the camshaft in engines lacking cam thrust plates. This reduction in movement helps minimize friction, potentially resulting in increased horsepower. It's important to note that installation may require machining of the cam sprocket. This particular thrust button is made from aluminum and is designed for use with Big Block Chevy engines. It measures 0.945 inches in length.
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