COOLING
Power Steering Pulley Sold Separately
SB Chevy 1:1 Ratio Reduction Pulley Kits Premium 1:1 pulley kits feature 4-3/4" diameter pulleys with 1/2" wide grooves for use with industrial grade belts. The increased belt width helps reduce belt slippage when used with high perfor-
Water Pump Spacer Kits
ALL31090
Kits provide additional clear- ance needed for belt or gear drive timing systems. Gaskets are included. Part No. Description ALL31070 1/8" ALL31071 1/4" ALL31072 3/8" ALL31073 1/2" ALL87230 Replacement Gaskets Pulley Shim Kits
ALL31072
mance mechanical fans. The small diameter pulley combination provides a 30% RPM reduction when using a power steering pump with a 6" pulley. Note: Pulleys are designed to use with short “Corvette Style” 3/4" shaft water pump (ALL31105 or ALL31106). Part No. Description ALL31090 Kit for Block Mount Power Steering Pump ALL31092 Kit for Head Mount Power Steering Pump ALL31093 Kit for No Power Steering Replacement Parts ALL31094 1:1 Crank Pulley (4-3/4") ALL31095 1:1 Water Pump Pulley (4-3/4") V-Belts Premium quality V-belts are perfect replacements for worn or cracked belts. Part No. Description ALL86120 31.5" ALL86121 34" ALL86122 39" ALL86123 41" ALL86124 42" ALL86125 44" Performance V-Belts Industrial grade V-belts are slightly wider than standard V-belts and are used with the Allstar reduction style 1:1 pulley kits with 1/2" wide pulley grooves. The wider contact area helps reduce slippage when using high-performance mechanical fans. Note: These will not work with standard width pulleys that are designed for 7/16" wide V-belts. Part No. Description ALL86127 29" ALL86128 37" ALL86129 41" Crank Pulley Mandrel Kit ALL31031 is attached to the crankshaft pulley with three bolts, while the vibration damper is retained with the stock bolt. The mandrel bolt is then connected to the mandrel – not to the crankshaft – to reduce engine harmonics (helps prevent loosening or breaking). Kit includes spacers, pulley guides, and bolts to work effectively with most 3-, 4-, and 5-stage dry sump pumps, alone or with belt-driven fuel pumps. Pulleys sold separately. Part No. Description Replacement Parts ALL31032 Crank Pulley Mandrel ALL31033 Mandrel End Washer ALL31034 Stepped Washer ALL31035 Pulley Guide ALL31036 Mandrel Keyway, 1/8" ALL31037 Mandrel Bolt, 5/16"-18 x 1" (3-Pack) ALL31038 Mandrel End Bolt, 1/2"-13 x 4" Kit prevents mandrel bolt breakage and is made spe- FL¿FDOO\IRUXVHZLWK$OOVWDU ALL31030 crank pulley. Mandrel
Use shim kits to properly align pulleys. Water pump shims have dual bolt hole SDWWHUQWR¿WPRVW*0DQG)RUGZDWHU pumps. Crank pulley spacers are for small block Chevys. Part No. Description
ALL31064
ALL31064 Water Pump, 1/16", 1/16", 1/8" (3 Shims) ALL31066 Crankshaft, 1/16", 5/64", 1/8" (3 Shims) Aluminum SB Chevy Reduction Pulleys 6SHFL¿FDOO\IRUVKRUWRU&RU -
ALL31066
vette water pumps, pulleys work with power steering pump and pulley to provide a ratio within WKH*0VSHFL¿HG530UDQJH Race engine RPM differs greatly from street engines. For 30% less water pump speed and
ALL31030
ALL31040
reduced weight and inertia, the crankshaft and water pump pulleys are smaller in diameter than standard reduction pulleys. Acceleration capabilities are greatly enhanced. Part No. Description 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" Note: Crankshaft pulley will work with either water pump pulley without spacers. SB Chevy 1:1 Ratio Pulley Kits
Double-groove aluminum pulley kits feature 6-5/8" diameter pul- leys and include common 15/32" V-belts to work with block or head
ALL31080
mounted Allstar power steering kits. Pulley kits are designed to work with short-style water pumps with a 5/8" shaft that mea- sure 5-5/8" from block mount to hub face. Components also sold separately. Part No. Description ALL31080 Kit for Block Mount Power Steering Pump ALL31082 Kit for Head Mount Power Steering Pump ALL31083 Kit for No Power Steering Related Parts ALL31084 1:1 Crank Pulley (6-5/8") ALL31085 1:1 Water Pump Pulley (6-5/8") ALL86121 Belt, Crank to Water Pump, 34" ALL86123 Belt, Crank/Water Pump/Block Mount P/S Pump, 41" ALL86125 Belt, Crank/Water Pump/Head Mount P/S Pump, 44"
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CIRCLE TRACK 2021-22
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