Moroso Oil Restrictor Kit .0625" orifice diameter, 2 per package (MO22017)

MO22017 - MOROSO OIL RESTRICTOR KIT SUIT

Suit Big Block Chevy Merlin II blocks

Part Number: MO22017

Screws into existing lifter gallery cleaning plug holes at back of block

Oil lifter galley bosses flush with bell housing face
Reduces oil flow to upper engine assembly, leaving more oil available for the rod and main bearings
Reduces power-robbing windage by reducing the volume of oil passing by the rotating assembly on its return to the pan
Do not use with hydraulic lifters