For Small Block Ford 289-302 and 351 Windsor; .875? diameter; 134g weight; 2.01? seat height; EDM Oil Injection Technology guarantees that the bearing assembly receives constant, pressurized oil flow via precision hole aimed at the bearings; Needle bearings are precision sorted by size to evenly distribute loads, which prevents premature wear and failure ; Durable axle is made from wear resistant tool steel to prolong the life of the roller assembly, especially in high RPM applications
