Page 28 - 2022-23 Auto Performance Drag Racing

Aluminum SB Chevy “Corvette Style” Water Pumps
This aluminum version of “Corvette
style” water pump was origi-
nally used on 1971-82 small block
Chevrolet Corvette, but is now
used throughout the motorsports
industry. Pump is built using all-new components and an aluminum body
for added weight savings over origi-
nal cast iron pumps. Pump features
a 3/4" main shaft and bearings
with a 3/4" pilot and a billet steel
hub that has a set screw retainer
for use on higher RPM applications.
Block mount to fan hub dimension is 5-13/16".
Part No. Description
Note: Water pumps may need to be clearanced for use with 8" dampers.
Water Pump Cam Stop Kit ALL99415
Aluminum SB Chevy Reduction Pulleys
DRAG RACING
Cooling
ALL31105
ALL31106
Specifically for short or Cor-
vette water pumps, pulleys
work with power steering
pump and pulley to provide a
ratio within the GM specified
RPM range. Race engine RPM
differs greatly from street engines.
For 30% less water pump speed and reduced weight and inertia, the crankshaft and water pump pulleys are smaller in diameter than standard reduction pulleys. Acceleration capa- bilities are greatly enhanced.
ALL31040
Description
ALL31030
Part No.
ALL31030
Crankshaft Pulley (4-3/4" Diameter)
ALL31040
Water Pump Pulley, Short Pump with 5/8" Pilot Hole (6-5/8" Dia.)
ALL31050
Water Pump Pulley, Corvette Pump with 3/4" Pilot Hole ( 6-5/8" Dia.) Belts
ALL86120
Belt, Crank to Water Pump, 31.5"
ALL86122
Belt, Crank/Water Pump/Block Mount P/S Pump, 39"
ALL86124
Belt, Crank/Water Pump/Head Mount P/S Pump, 42"
ALL31105
Water Pump
ALL31106
Water Pump with 3/8"NPT Bypass Ports and Cam Stop Hardware
Water pump cam stop kit includes
a 2" long 3/8"-24 threaded stud,
washer and nut to replace or add a
cam stop bolt to a water pump equipped with a stud mount- ing boss. Stud can be tightened against timing cover when cam buttons are used to help prevent “cam walk”.
GM LS Electric Water Pump ALL31122
Machined from 6061-T6
billet aluminum, high flow
electric water pump has a
corrosion-resistant, black
anodized finish and fits all
GM LS Gen. III/IV engines. Pump has OEM F-body inlet/outlet locations, and may be used with the ALL31160 inline thermo- stat housing, if desired.
Note: Crankshaft pulley will work with either water pump pulley without spacers.
Inline Electric Water Pump ALL31130
Inline water pump will flow up
to 50 GPM, which is suitable for
many applications throughout
the motorsports industry. Pumps
are designed to provide better
cooling and space savings over
most mechanical pumps. Pump can
be used on 12-16 volt systems and only
draws 6 amps. Electric motor is sealed to
help prevent damage or corrosion and billet 6061-T6 aluminum housing is black hard-coat anodized with threaded mount-
ing holes for easy mounting. Use with Allstar ALL31135-31140 adapter fittings. Complete unit weighs 6 lbs. Wire harness with 20-amp inline fuse included.
Part No.
Description
ALL31135
1-1/4" Hose Fitting
ALL31136
1-1/2" Hose Fitting
ALL31137
1-3/4" Hose Fitting
ALL31138
-12AN Fitting
ALL31139
-16AN Fitting
ALL31140
-20AN Fitting
Water Pump Spacer Kits
Kits provide additional clear- ance needed for belt or gear drive timing systems. Gaskets are included.
ALL31135
ALL31138
Part No.
Description
ALL31072
ALL31064
Water Pump AN Block Adapters
Adapters mount in place of standard mechanical water pumps when using inline or remote electric water pumps. Ford pump adapters require water pump back plates for complete installation.
ALL31070
1/8"
ALL31071
1/4"
ALL31072
3/8"
ALL31073
1/2"
ALL87230
Replacement Gaskets
Pulley Shim Kits
Use shim kits to properly align pul- leys. Water pump shims have dual bolt hole pattern to fit most GM and Ford water pumps. Crank pulley spacers are for small block Chevys.
Part No. Description
Part No.
Description
ALL31150
SB Chevy -12AN
ALL31151
BB Chevy -12AN
ALL31152
SB Ford -12AN
ALL31153
SB Ford Water Pump Back Plate (Early)
ALL31154
SB Ford Water Pump Back Plate (Late)
ALL31066
ALL31064
Water Pump, 1/16", 1/16", 1/8" (3 Shims)
ALL31066
Crankshaft, 1/16", 5/64", 1/8" (3 Shims)
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2022-23