Small Block Chevy BMP, World Products, Newer Style GM Blocks Oil Restrictor Kits .060" hole, Mounts flush with bell housing face. Two per kit
Reduces oil flow to upper engine assembly, leaving more oil available for the rod and main bearings also eliminating additional oil volume being drained down on top of the rotating assembly.
Note: Does not fit World Products Motown II blocks
Note: not for use with hydraulic lifters
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