SB Chevy 1:1 Ratio Pulley Kits Double groove aluminum pulley kits feature 6-5/8" diameter pulleys and include common 15/32" V-belts to work with block or head mounted Allstar power steering kits. Pulley kits are designed to work with short style water pumps with a 5/8" shaft that measure 5-5/8" from block mount to hub face. Components also sold separately. 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") ALL86123 ..... Belt, Crank/Water Pump/Block Mount P/S Pump, 41" ALL86125 ..... Belt, Crank/Water Pump/Head Mount P/S Pump, 44" V-Belts Premium quality V-belts are perfect replacements for worn ALL31080 ALL31085..... 1:1 Water Pump Pulley (6-5/8") ALL86121 ..... Belt, Crank to Water Pump, 34"
Crank Pulley Mandrel Kit ALL31031 Kit prevents mandrel bolt breakage and is made specifically for use
with Allstar ALL31030 crank pulley. Mandrel is attached to the crankshaft pulley with three bolts, while the
vibration damper is retained with the stock bolt. The man- drel 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. 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" Mandrel Spacers Aluminum spacers properly space and align pulleys when used with a 1/8" keyed mandrel. The same spacers are found in the ALL31031 Mandrel Kit. Sold each.
or cracked belts. ALL86120 ..... 31.5" ALL86121 ..... 34" ALL86122 ..... 39"
ALL86123...... 41" ALL86124...... 42" ALL86125...... 44"
Power Steering Pulley Sold Separately
SB Chevy 1:1 Ratio Reduction Pulley Kits Premium 1:1 pulley kits fea- ture 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
ALL31020 ..... 1/4" Thick Spacer ALL31022 ..... 1/2" Thick Spacer ALL31024 ..... 3/4" Thick Spacer ALL31026 ..... 1" Thick Spacer ALL31028 ..... 1-1/4" Thick Spacer
performance mechanical fans. The small diameter pulley combination provides a 30% RPM reduc- tion 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). 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") Performance V-Belts 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. ALL86127 ..... 29" ALL86129...... 41" ALL86128 ..... 37" ALL31090 Industrial grade V-belts are slightly wider than standard V-belts and
Gilmer Belts 1" wide, assorted lengths.
ALL86130 ..... 21.0" ALL86132 ..... 22.5" ALL86134 ..... 24.0"
ALL86136...... 25.5" ALL86138...... 27.0"
TECH TIP Belt Tension - Gilmer style belts are properly tensioned when belt can be twisted 1/2 turn.
Brett Hearn
Photo: Mike Traverse Photos
www.allstarperformance.com
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