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Engine Works Billet 4-Bolt Conversion Main Caps

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Increase strength, rigidity, and performance with Engine Works billet conversion main caps. They take your setup from a standard 2-bolt to a high performance 4-bolt, that will better hold the main bearings in place and help prevent cap walk under extreme load and high rpms. The caps are precision-machined from high-strength steel with the proper balance of strength and flexibility to allow transfer of increased shock loads to the crank and bearings. Select straight or splayed bolt-style cap. Drill guides are included.