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Oil Restrictor Kit .0625'' orifice diameter, 2 per packageSuit Big Block Chevy Merlin II blocks

$51.24 AUD

  • 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