22637 - Moroso Racing Vacuum Pumps & Accessories

Extra vacuum boosts power by: improving ring seal; preventing blow-by, intake charge contamination, and detonation; allowing the use of low-tension piston rings for less friction. These purpose-built vacuum pumps offer such power advantages in three designs to accommodate any engine combination and requirement. Use Moroso replacement pump fittings only. Moroso Vacuum Pump FAQs.

Original Racing Vacuum Pump

3 or 4-vane pump

Billet aluminum housing

Pulls much more vacuum than stock smog pumps

Special vane material for improved seal and wear

-12AN inlet/outlet fittings won't leak

Rebuildable in 15 minutes

Mounting bracket sold separately (bolts directly to small or big block Chevy heads & any motor plate)

Enhanced Racing Vacuum Pump

4-vane pump

Anodized or natural exterior

Pulls 13.9% more vacuum and does so sooner

Weighs 12 oz less and measures 1" shorter than Original design

Sealed, maintenance-free bearings

Mounting bracket and -12AN fittings included

Belt length may change depending on mounting location (new belt may be required)

Pro Mod Racing Vacuum Pump

4-vane pump

Achieves much greater vacuum sooner

Flows up to 150% more air volume at low RPMs

Capable of up to 26 inches of vacuum

Rotor is keyed to shaft, eliminating fastener failure

Pump weighs 7 lbs, 8 oz (with bracket and fittings)

Sealed, maintenance-free bearings

Billet bracket and -16AN beaded fittings included (bracket mounts to motor plate & rotates 360°)

JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need. For small or big block Chevy, an Original 3-Vane Vacuum Pump Kit includes:

Moroso Original 3-Vane Racing Vacuum Pump #710-22640

Moroso Vacuum Pump Mounting Bracket #710-63910

Moroso Gilmer 28-tooth Pulley #710-64886

Moroso SB-Chevy (#710-63845) or BB-Chevy (#710-63844) Vacuum Pump Drive Kit

Moroso -12AN Valve Cover Fitting #710-22635

JEGS Remote Oil Breather Tank #555-52200

JEGS -10AN to -12AN Hose Adapter #555-110168

JEGS -12AN Straight Swivel Hose Ends #555-100004

JEGS -12AN 90° Swivel Hose Ends #555-100024

JEGS -12AN Pro-Flo Braided Hose #555-100941

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Complete list of Moroso Racing Vacuum Pumps & Accessories