Heavy-duty inner camshaft needle roller bearings for performance engines. Manufactured by Koyo® Torrington® and made in the USA.
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Converts early '99–'06 spring-tensioner cam-chain systems to the late '07–'17 hydraulic design. Includes billet oil pump, high-flow camplate, lifters, tensioner housings, chains, sprockets, bearings, gaskets and installation hardware. Rocker box gasket kit included to reuse factory one-piece pushrods. Made in USA.
Complete Race Series conversion kit to replace early 1999–2006 mechanical spring cam chain tensioners with the late 2007–2017 hydraulic system; includes pump, lifters, housings, chains, sprockets and hardware.
Complete conversion kit to upgrade early mechanical cam chain systems to hydraulic-style operation; includes pump, full-travel lifters, chains, sprockets and hardware.
Quality pinion shaft bushing manufactured in the U.S.A. Precision fit for reliable performance.
Stellite-tipped stainless-steel valve nitrided for improved wear resistance, corrosion protection, and reduced friction.
High-precision wrist pin bushing machined to tight concentricity tolerances with a lead-in edge for easy installation.
Designed for HD® Evolution OEM replacement. Machined from high‑grade metal with a corrosion‑resistant dark finish. Multipurpose alignment pins. Made in the USA.
High-density powdered metal valve seats for superior wear resistance and thermal stability. Tested for track and street use.