Description
This Moroso 4 vain vacuum pump will create a negative environment throughout the engines crank case which will enhance ring seal and Horsepower. Vacuum in an engines crankcase relieves pressures that build up against engine seals and gaskets. Recommended for engines with displacements over 468 or engines that produce over 725 hp. External oil pump or aftermarket internal oil pump with larger i.d. pick up.
