| Rev Kits Designed for roller cam applications to increase valve train stability throughout the RPM range. In addition to increasing RPM capability, rev kits will also keep the lifter in the lifter bore in the event of valve train failure. The locator bars and lifter buttons are made of the highest quality aluminum and then anodized for protection. Each kit is complete with a pair of locator bars, springs, and lifter buttons. Made in the USA. Note: Will not work on some Pro-Topline or RHS Chev small block cylinder heads.
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