Blocks machined for 0.904 in. lifters give the lifter more body to work with, and that extra diameter is what lets a solid roller survive aggressive lobes and heavy spring pressure. These are the large diameter Sportsman lifters, with two pressurized oil feeds to the axle and staked axles rather than clips, so the ears stay stiff instead of spreading.

COMP Cams 96958-16 Sportsman Solid Roller Lifter Features:

• Fits GM Gen III and Gen IV LS engines machined for 0.904 in. lifters.
• 0.904 in. body diameter with a centered pushrod seat.
• Needle bearing axle and wheel assembly.
• Two pressurized EDM oil feeds to the axle plus an edge orifice feed to the wheel.
• Staked axles eliminate clips and stiffen the lifter ears.
• Skirted wheel design adds contact area in the lifter bore for stability.
• Machined from 8620 premium steel with a captured link bar design.
• Tall body suits standard and 0.300 in. tall lifter bores.
• Sold as a set of 16 lifters.