Powerglide Tappet – .002 – Evolution

The same Powerglide advantage (oil-fed axle, billet steel body, precision fit hydraulics), but now incorporates a Steady Roll bronze bushing in place of the needle bearing roller; These tappets have undergone extensive development to increase load, lubrication, hydraulic and life capacities; Billet body; Increased roller width; Roller perpendicularity held to .0002″; Hand-honed hydraulic unit cavity; Dynamic load capacities increased over 30%; Lubrication capacities for hydraulic unit and valve train (top end) increased 10%; Lubrication capacities for the roller, cams and cam bearings have increased 100% for increased cooling; Made in the U.S.A.