COMP Cams 98891-16 Elite Race Solid Roller Lifter for Small Block Chevy with 0.904" Diameter Enlarged Lifter Bores, (Set of 16) For Small Block Chevy with enlarged lifter bores (0.904 inches) 0.904 inches diameter; 102 gram weight; 1.95 inches seat height; 0.82 inches wheel diameter Interchangeable pushrods seats can be swapped for centered, left or right offsets; patent-pending design allowing oil control through the pushrod insert allows builders to modify lifters to meter extra oil to the top Dual-pinned 0.4 inches axles contain extra needle bearings for optimum load distribution; needles are constructed from 52100 bearing steel and micro-sorted; axles are pinned on both sides to allow oiling between them Captured link bars are specifically designed to offer maximum control and durability for race and high rpm applications