Speedway Motors SBC Aluminum Pulley Set for Short Water Pump, Single Groove Water Pump & Double Groove Crank Pulley Kit for 1955–1968 SBC V-Belt Applications

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 water pump pulley for one V-belt. Double groove crank pulley for two V-belts. Kit Includes: (1) SBC Aluminum Short Water Pump Pulley - Single Groove. (1) SBC Aluminum Short Pump Crank Pulley - Double 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 - Double Groove Diameter is 6-5/8" Mounted Length: 1.25" Bolt Hole Pattern: 3 on 2.75" Belt Width: .42" 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.

• Vehicle Compatibility – Designed specifically for 1955–1968 Small Block Compatible with Chevy engines using a short-style water pump and traditional V-belt accessory drives
• Pulley Configuration – Includes a single-groove water pump pulley and a double-groove crank pulley to support one or two V-belt accessories as needed
• Material Construction – Precision-machined cast aluminum design offers a lightweight yet durable solution compared to heavier steel pulleys
• Dimensional Accuracy – Both pulleys measure approximately 6-5/8 inches in diameter for consistent belt alignment and reliable accessory operation
• Complete Matched Set – Convenient two-piece pulley kit ensures proper fitment and a clean, coordinated appearance for Small Block Compatible with Chevy engine setups