Speedway 9108692 SBC Aluminum Pulley Set, 2-Groove Upper/3-Groove Lower,Short Pump KOP9O_QE470

Product details:

Pair up a new set of pulleys sure to match for your Small Block Chevy equipped with a short-style water pump. These convienent combos feature cast aluminum construction, for use on 1955-1968 SBC engines. Precision machined cast aluminum construction Lightweight and strong For '55-'68 Small Block Chevy short style water pumps Double groove water pump pulley for two V-belts Triple groove crank pulley for three V-belts Kit Includes: (1) SBC Aluminum Short Water Pump Pulley - Double Groove (1) SBC Aluminum Short Pump Crank Pulley - Triple Groove SBC Aluminum Short Water Pump Pulley - Double Groove Fits over a 5/8" water pump shaft (can be drilled to 3/4" if needed) .30" thick at the hub mounting flange Diameter is 6-5/8" Outside Length: 3" Mounted Length: 2.71" Shaft Diameter: .63" Bolt Hole Pattern: 4 on 1.75" Belt Width: .38" SBC Aluminum Short Pump Crank Pulley - Triple Groove Diameter is 6-3/8" Mounted Length: 1.93" Bolt Hole Pattern: 3 on 2.75" Belt Width: .42" Inside Diameter: 1.10" Mounting surface to the center of the first pulley groove 0.34" Mounting surface to the center of the second groove 1" Mounting surface to the center of the third groove 1.59" Pulley width 1.94" Notes: It may be necessary to shim either or both of the pulleys to achieve perfect belt alignment. There are variances between manufacturers of both water pumps and pulleys. Water Pump Pulley: Mounted length is from the face of the water pump pulley mount towards the front of the engine. Crank Pulley: Mounted length is from the face of the harmonic balancer towards the front of the vehicle. Get the correct pulleys for your application by learning which water pump you have as explained in our tech article. SBC - Short vs Long Water Pump.