Page 40 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

COOLING

6-BLADE FANS ALUMINUM SB CHEVY
Heavy-duty, 27 degree, 6-blade fans, available with “SHORT STYLE” WATER PUMP ALL31100
aluminum or steel blades, can move the volume of Popular “short style” water pump that was originally
air needed to keep race engines cool. Universal bolt used on pre-1969 small block Chevrolets. Pumps are built
pattern with a 5/8" pilot hole. using all new components and an aluminum
Part No. Description body for added weight savings over original
ALL30096 15" Dia. Aluminum Blades cast iron pumps. Pump features a 3/4” main
ALL30097 17" Dia. Aluminum Blades shaft and bearings with a 5/8” pilot and a billet
ALL30102 15" Dia. Steel Blades steel hub drilled for both small and large fan
ALL30103 17" Dia. Steel Blades bolt patterns making this a good choice for
ALL30100 18" Dia. Steel Blades street and mild performance vehicles. Block
mount to fan hub dimension is 5-5/8". This pump is not recommended for use
MOLDED NYLON FANS with mechanical fans over 5,000 RPM. Above this RPM, use the ALL31105
pump with a 3/4" shaft/bearing.
Lightweight, 6-blade fans are economical and very du- Note: Water pump may need to be clearanced for use with 8" dampers.
rable. Universal bolt pattern with a 5/8" pilot hole.
Part No. Description ALUMINUM SB CHEVY “CORVETTE STYLE”
ALL30091 14" Dia. WATER PUMPS
ALL30092 15" Dia. This aluminum version of “Corvette style” water pump was originally used on
ALL30093 16" Dia. 1971-82 small block Chevrolet Corvettes but is now used throughout the mo-
ALL30094 17" Dia. torsports industry. Pump is built using all new components and an aluminum
ALL30095 18" Dia. body for added weight savings over original 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
REINFORCEMENT PLATE set screw retainer for use on higher RPM applications. Block mount to fan hub
FOR NYLON FANS ALL30079 dimension is 5-13/16".
Plate installs beneath the mounting hardware to strengthen
fan mounting location and prevent hardware from damaging
the fan.

FAN SPACER KITS
Fan spacers position fan closer to radiator or fan shroud
and away from pulleys. 1-1/2" and larger spacers are unique-
ly designed allowing spacer to remain bolted to water pump ALL31105
while changing fans. Aluminum spacers include reducer ALL31106
bushing, four Allen bolts to secure spacer to Part No. Description
water pump and four hex bolts with washers ALL31105 Water Pump
to secure fan to spacer. Spacers work with Water Pump
1-3/4" bolt circle flanges only. Note: ALL30180 ALL31106 With 3/8" NPT Bypass Ports And Cam Stop Hardware
and ALL30182 include one set of four Allen bolts Note: Water pumps may need to be clearanced for use with 8" dampers.
only.
Part No. Description WATER PUMP SPACER KITS
ALL30180 1/2" Kits provide additional clearance needed for belt or gear drive timing sys-
ALL30182 1" tems. Gaskets are included.
ALL30184 1-1/2" Part No. Description
ALL30186 2" ALL31070 1/8"
ALL30188 2-1/2" ALL31071 1/4"
ALL30190 3" ALL31072 3/8"
ALL30192 3-1/2" ALL31073 1/2"
Replacement Reducer Bushing
ALL99027 Replacement
(5/8" to 3/4") ALL87230 Gaskets ALL31072
Note: ALL30180 and ALL30182 include one set of four Allen bolts only.
PULLEY SHIM KITS
FAN FREEWHEELER ALL30078 Use shim kits to properly align pulleys. Water pump shims have dual bolt hole
Lets the fan “freewheel” when extra horsepower is pattern to fit most GM and Ford water pumps. Crank pulley spacers are for
needed for qualifying. Removal of one through-bolt small block Chevys.
disengages the fan. Fits 3/4" shafts and spaces the fan
2.375" from the water pump. ALL31064
Part No. Description
Replacement Component ALL31066
ALL99026 Replacement Bushing Part No. Description
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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