This Oil Restrictor Kit for Merlin II Blocks (.0625 orifice diameter) screws into lifter galley cleaning plug holes at the back of the block. It reduces windage & oil flow to upper engine assembly, leaving more oil for rod/main bearing.
; 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
- Merlin II Blocks
- .0625 orifice diameter
- Screws into lifter galley cleaning plug holes at back of block
- Lowers oil flow to upper engine assembly, leaving more oil for rod/main bearings
- Reduces windage
- Don't use w/ hydraulic lifters.
