We’ve taken our popular 3-Vane Vacuum Pump and added tricks that we learned when designing our “Enhanced Design” 4 Vane Vacuum Pump and through continual development of our Vacuum Pump line. The end result is;

The “Enhanced Design” features allow the pump to pull more vacuum than the “original” style 3-Vane pump Achieves greater vacuum sooner 3-Vane Design weighs less than “original” style pumps Virtually maintenance free Designed with maintenance-free precision sealed roller bearings Includes -12AN Fittings Does not include a mounting bracket, see Moroso mounting bracket options

Fits Moroso Racing Vacuum Pumps or similar “smog” pumps that use OE-style, 3-bolt mounting pattern; accepts standard Gilmer belts with 1/2" width or less Direct, bolt-on installation Precision machined from aircraft-quality aluminum Use with Moroso 3- or 4-Vane Vacuum Pump Nos. 22640, 22641, 22642, 22643, 22644, 22840, 22842 and interchangeable drive components

Regulator screws directly into vacuum pump’s -12AN inlet–no need to drill additional holes in the valve cover 360º directional adjustability by turning the built-in adjustment knob to get the precise amount of vacuum desired Tightening the integral locknut keeps the adjustment locked until the next adjustment is needed Can be disassembled for easy cleaning and maintenance and will work with any vacuum level Made from 6061 billet aluminum with a clear anodized finish Prevents pulling excess oil out of the crankcase

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

"Enhanced Design" pulls 13.9% more vacuum Can be used efficiently on wet or dry-sump engines Achieves greater vacuum sooner 4-Vane Design weighs less than "original" style pumps Virtually maintenance free 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

"Enhanced Design" pulls more vacuum Can be used efficiently on wet or dry-sump engines Achieves greater vacuum sooner 4-Vane Design weighs less than "original" style pumps Virtually maintenance free, designed with maintenance-free precision sealed roller bearings. Includes -12AN fittings Does not include a mounting bracket

Pulls large consistent vacuum numbers Creates vacuum quickly and linearly Virtually maintenance free, designed with maintenance-free precision sealed roller bearings Includes a manifold for dual feed applications or installation of a relief valve Comes with a 36 tooth 3/8" pitch 1/2" wide Gilmer pulley, adjustable mounting bracket and -12AN fittings

Large displacement creates incredible vacuum Flows up to 150% more than Original Design Capable of flowing 100 CFM with -16AN fitting Utilizes sealed maintenance free bearings Adjustable bracket and fittings included

For SBC AND BBC Two mounts are incorporated into one billet aluminum frame with belt adjustment for alternator and vacuum pump These bracket kits are designed to mount mini ND-style 93mm alternators and Moroso No. 22642, No. 22644, No. 22840 or No. 22842 Enhanced Design Vacuum Pumps to either side of the engine, while clearing the electric water pump Works with most old and new style drive mandrel kits Includes all spacers and hardware

For Ford 289, 302, 351W for Meziere Electric Water Pumps Two mounts are incorporated into one billet aluminum frame with belt adjustment for alternator and vacuum pump Bracket kit was designed to mount mini ND Style 93mm Alternators and Moroso No. 22642, No. 22644, No. 22840 or No. 22842 Enhanced Design Vacuum Pumps Mounts Alternator on driver’s side and Vacuum Pump on passenger’s side while clearing the electric water pump Works with most styles of drive mandrel kits Includes all spacers and hardware

Ford 289/302/351W for Moroso Electric Water Pumps and Enhanced Design Vacuum Pumps Two mounts are incorporated into one billet aluminum frame with belt adjustment for alternator and vacuum pump Bracket kit was designed to mount mini ND Style 93mm Alternators and Moroso No. 22642, No. 22644, No. 22840 or No. 22842 Enhanced Design Vacuum Pumps Mounts Alternator on driver’s side and Vacuum Pump on passenger’s side while clearing the electric water pump Works with most styles of drive mandrel kits Includes all spacers and hardware

Fits: Ford 289/302/351W for CSRTM Electric Water Pumps and Moroso Enhanced Design Vacuum Pumps Two mounts are incorporated into one billet aluminum frame with belt adjustment for alternator and vacuum pump Bracket kit was designed to mount mini ND Style 93mm Alternators and Moroso No. 22642, No. 22644, No. 22840 or No. 22842 Enhanced Design Vacuum Pumps Mounts Alternator on driver’s side and Vacuum Pump on passenger’s side while clearing the electric water pump Works with most styles of drive mandrel kits Includes all spacers, stainless steel hardware and a turn buckle

12AN, Adjustable Vacuum relief point is adjustable by turning the built-In adjustment knob to get the precise amount of vacuum desired. Tightening the integral locknut keeps the adjustment locked until the next adjustment is needed. Can be disassembled for easy cleaning and maintenance and will work with any vacuum level They are made of 6061 aluminum and have a smooth, attractive finish

Includes 6 feet of steel re-enforced hose, two 90 degree hose fittings and two –12AN straight hose fittings Designed to simplify Vacuum Pump Installation

Includes 6 feet of steel reinforced hose Replacement line for Moroso Vacuum Pump Line Kit No. 22649

-16AN for Moroso Vacuum Pump No. 22643 Anodized to prevent corrosion Radiused inlets to reduce restriction for greater flow Includes O-rings Two per package

Regulator screws directly into vacuum pump’s -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

Designed to facilitate connection of vacuum gauge to the valve cover without welding Use with Moroso Vacuum Gauge No. 89610 Includes o-rings