Speedway Motors SBC Aluminum Single Groove Pulley Set Short Water Pump Lightweight Cast Aluminum V Belt Design Compatible with 1955-1968 SBC Engines

Pair up a new set of pulleys sure to match for your Small Block Compatible with 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 Compatible with Chevy short style water pumps. Single groove for V-belt. Kit Includes: (1) SBC Aluminum Short Water Pump Pulley - Single Groove. (1) SBC Aluminum Short Pump Crank Pulley - Single Groove. SBC Aluminum Short Water Pump Pulley - Single Groove From inside at fan hub to back side of pulley is 2-3/4" From back edge of pulley to center of V-belt groove is 5/16" Fits over a 5/8" water pump shaft (can be drilled to 3/4" if needed) Diameter is 6-5/8" Outside Length: 3" Mounted Length: 2.38" Shaft Diameter: .63" Bolt Hole Pattern: 4 on 1.75" Belt Width: .38" SBC Aluminum Short Pump Crank Pulley - Single Groove This pulley has "0" offset and is flat against balancer. From edge of pulley to center of V-belt groove is 5/16" Diameter is 6-5/8" Mounted Length: .64" Bolt Hole Pattern: 3 on 2.75" Belt Width: .41" Inside Diameter: 1.10" 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.

• SBC Short Pump Fitment: Designed specifically for 1955–1968 Small Block Compatible with Chevy engines using short-style water pumps
• Lightweight Aluminum Construction: Precision-machined cast aluminum pulleys provide strength while reducing rotating mass
• Single Groove V-Belt Design: Matched single-groove setup ensures proper belt alignment for traditional V-belt systems
• Complete Pulley Set: Kit includes one short water pump pulley and one crank pulley for a coordinated installation
• Proper Diameter & Alignment: Both pulleys feature a 6-5/8" diameter; shimming may be required for ideal belt alignment depending on components