Moroso Chevrolet Big Block Gen 5/6 Oil Restrictor Kit w/.0625in Orifice Diameter - 2 Pack

Moroso Chevrolet Big Block Gen 5/6 Oil Restrictor Kit w/.0625in Orifice Diameter - 2 Pack

Marsoni

M251S

$41.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Moroso Chevrolet Big Block Gen 5/6 Oil Restrictor Kit w/.0625in Orifice Diameter - 2 PackSKU: 22016 OIL RESTRICTORS, BBC GEN. 5 & 6 Oil Restrictor Kit. Fits newer GM Style blocks (including Mark V and Gen VI),. 0625" orifice diameter with oil lifter galley bosses flush with bell housing face. Two per pack 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

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Reviewed in the United States on May 23, 2026