Moroso 22641 - 4 Vane Vacuum Pump

The nature of a vacuum pump is to remove, air, blow-by gasses and other contaminants from the crankcase of an engine. The vacuum pumps ability to remove the air in the crankcase results in overall engine vacuum. Vacuum will increase horsepower by allowing the use of low-tension compression and oil control rings. In which the use of reduces frictional horsepower losses, blow-by, intake charge contamination and aids in detonation prevention. Morosos purpose built racing pumps offer all these advantages and more. Whether you have a normally aspirated Small block or a nitrous equipped Pro-Mod, one of Morosos four vacuum pump offerings with all the needed accessories have you covered. These pumps will suit nearly any engine combination and requirement.

• Pulls Much More Vacuum Than Stock "Smog" Pumps
• Available in 3 or 4 Vane Design
• Billet Aluminum Housing
• Special Vane Material for Improved Seal and Wear
• Special -12AN Inlet/Outlet Fittings Won't Leak
• Completely Rebuildable in 15 Minutes
• Bracket (Available Separately) Bolts Directly to Big and Small Block Chevy Heads and Any Motor Plate