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 five vacuum pump offerings with all the needed accessories have you covered. These pumps will suit nearly any engine combination and requirement.
ORIGINAL DESIGN 3-VANE VACUUM PUMP
- Versatile Billet aluminum design
- Engineered vane material for improved efficiency and wear
- Completely rebuildable in 15 minutes
ORIGINAL DESIGN 4-VANE VACUUM PUMP
- Versatile Billet aluminum design, well suited for wet or dry-sump applications
- Engineered vane material for improved efficiency and wear
- Completely rebuildable in 15 minutes
ENHANCED DESIGN 4-VANE VACUUM PUMP
- 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
- Kit includes versatile mounting bracket, and -12AN fittings
- Designed with maintenance-free precision sealed roller bearings
- Pump No. 22644 is natural aluminum finish designed to be polished, interior hard coated for wear resistance
PRO-MOD STYLE LARGE CUBIC INCH ENGINES & BLOWER MOTOR PUMP
- Large displacement creates incredible vacuum
- Flows up to 150% more than Original Design
- Can achieve up to 26 inches of vacuum
- Utilizes sealed maintenance free bearings
- Adjustable bracket and fittings included
VACUUM PUMP BRACKETS
Moroso offers Anodized Billet Aluminum Vacuum Pump Mounting Brackets that fit a variety of engine and vacuum pump combinations. These brackets fit the engines directly or mount to a motor plate. Refer to the listings.
BILLET ALUMINUM EQUALIZING PLATES WITH FITTINGS
- Includes 1/8 NPT Fitting and 12AN Fitting
- Allows the vacuum pump and vacuum gauge to be connected
- Can also be used as a drain back location
- Black Anodized
VACUUM PUMP LINE KIT
- Includes 6 feet of steel reinforced hose, two 90 degree hose fittings and two 12AN straight hose fittings
- Designed to simplify Vacuum Pump installation
BILLET ALUMINUM VACUUM RELIEF VALVES
- Two styles allow fastening through valve covers (No. 22637) or threaded directly into lifter valley (No. 22636)
- Vacuum relief point is adjustable by shimming an internal spring to get the precise amount of vacuum desired
- Can be disassembled for easy cleaning and maintenance and works with any vacuum level
- They are made of 6061 T6 Billet aluminum and have a clear, attractive finish
VACUUM PUMP REGULATOR
- Regulator screws directly into vacuum pumps -12AN inlet
- 360º directional adjustability
- Prevents the need for drilling additional holes in the valve cover
- Anodized clear
- Prevents pulling excess oil out of the crankcase
Application:
- 1975-1976 CHEVROLET 262 SMALL BLOCK
- 1955-1957 CHEVROLET 265 SMALL BLOCK
- 1980-1995 CHEVROLET 267 SMALL BLOCK BASE V8 4.4 GAS FI N
- 1957-1967 CHEVROLET 283 SMALL BLOCK
- 1967-1969 CHEVROLET 302 SMALL BLOCK
- 1977-2002 CHEVROLET 305 SMALL BLOCK CARB
- 1967-1969 CHEVROLET 307 SMALL BLOCK
- 1962-1969 CHEVROLET 327 SMALL BLOCK
- 1967-1980 CHEVROLET 350 SMALL BLOCK GENERATION I
- 1973-2005 CHEVROLET 350 SMALL BLOCK LATE MODEL
- 1967-2005 CHEVROLET 360 SMALL BLOCK FI
- 1970-1980 CHEVROLET 400 SMALL BLOCK
