The nature of a vacuum pump is to remove air, blow-by gasses and other contaminants from the crankcase of an engine. Crankcase 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. MorosoÄôs Äúpurpose builtÄù racing pumps offer all these advantages and more. Whether you have a normally aspirated Small Block or a nitrous equipped Pro-Mod, one of MorosoÄôs vacuum pump offerings with all the needed accessories has you covered. These pumps will suit nearly any engine combination and requirement.
- "Enhanced Design" pulls 13.9% more vacuum
- Can be used efficiently on wet or dry-sump engines
- Achieves greater vacuum sooner, virtually maintenance free
- 4-Vane design weighs less than "original" style pumps
- Designed with maintenance-free precision sealed roller bearings
- 4.375" O.D. body, 5.050" from back of pump to pulley mounting flange
| PART NO. | AVAILABLE OPTION |
| 97642 | Vacuum Pump Vane Kit, Enhanced |
| PART NO. | REPLACEMENT PARTS |
| 97641 | Replacement Fittings, -12AN |
| 97181 | Shaft & Hub Assembly, for Nos. 22642, 22644, 22840, 22842 |
