Aluminum Water Pump withUnderdrive Pulleys, fits Small Block Chevy
State of the art T6 aluminum castings, Features an impeller with curved vanes for maximum flow, pressure, and equal distribution to both sides of the block, Unique seal assembly for leak proof operation, Pulleys feature a cast aluminum construction and natural finish, 20% diameter reduction slows accessories down for less drag. Small Block Chevy Aluminum Water Pump w/Underdrive Pulleys. Each pump is manufactured from T6 aluminum and features an impeller with curved vanes for maximum flow, pressure and equal distribution to both sides of the block. It also features a unique seal assembly for leak proof operation. 3/4" shaft with 5/8" fan pilot snout. 1/2 NPT hole on passenger side (for heater hose) and on top (for bypass hose). State of the art aluminum castings. Equal flow to both cylinder banks. Higher flow rate and pressure rate.
Does not have a set screw retaining the fan hub. NOTE: This pump is designed for street use and is not to be run on a motor which exceeds 5,500 RPM.
Learn how to choose the correct water pump for your application by reading our tech article. Water Pump - Short vs Long.
Allen pipe plugs are precision machined to ensure precise thread engagement. These lightweight aluminum plug fittings are designed to match up with all performance hose and hose ends. Speedway Cast Aluminum double groove pulleys for Small Block Chevy feature a 20% reduction.
Reduction pulleys have a smaller diameter which slows the speed of your fan, water pump, and alternator to reduce drag for more top-end horsepower. Plus, high RPM water pump operation is improved due to reduced fluid cavitation. Machined from lightweight cast aluminum.Superior belt retention with extra-deep grooves. 20% reduction slows accessories down for less drag.
Reduces water pump impeller speed below cavitation threshold. Available for Short style pumps (55-68).
Replacement pairs of matched belts for Speedway small block Chevy cast aluminum pulleys for short water pump. Pair of Matched Belts, 32.625 length.
Spaces lower pulley out to match with the upper pulleys. Water pump pulley shim kit provides proper drive belt alignment with pulleys. Kit contains two aluminum 1/16" spacer and one 1/8" spacer. Learn more about using different water pump accessories to best fit your application by reading our tech article.
(2) 1/16" shims, (1) 1/8" shim. Set of three Allen bolts for lower aluminum water pump pulley. Speedway Motors is America's Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 73 years.