Provide us with the precise micrometer measurements of the bearing housing to which the sleeve is to be fitted. VEE TWO will supply main bearing sleeves with the exact interference for your particular engine.
Correct fitment will prolong main bearing life and enhance engine performance; it must be considered an essential bottom end modification.
NB. Please Use L & R designations for left and right hand crankcases and it would also be convenient if customer would also state engine type, year and model.