SBC Aluminum Pulley Set, 2-Groove Upper/3-Groove Lower, Long Pump

Pair up a new set of pulleys sure to match for your Small Block Chevy equipped with a long-style water pump.  These convienent combos feature cast aluminum construction, for use on 1969-1985 SBC engines.

• Precision machined cast aluminum construction
• Lightweight and strong
• For '69-'85 Small Block Chevy long style water pumps
• Double groove water pump pulley for 2 V-belts
• Triple groove crankshaft pulley for 3 V-belts

Kit Includes:

• (1) SBC Aluminum Long Water Pump Pulley - Double Groove
• (1) SBC Aluminum Long Pump Crank Pulley - Triple Groove

SBC Aluminum Long Water Pump Pulley - Double Groove

• Center hole fits a 5/8" shaft (can be drilled out to 3/4" if needed)
• Hub surface to first groove center: 2.415"
• Center-to-center of grooves:  11/16"
• Diameter is 6-5/8"
• Mounted Length: 2.69"
• Shaft Diameter: .63"
• Bolt Hole Pattern: 4 on 2.13"
• Belt Width: .42"

SBC Aluminum Long Pump Crank Pulley - Triple Groove

• Mounting face to first groove:  1.090"
• First groove to second groove:  .625"
• Second groove to third groove:  .687"
• Overall Thickness:  2.77"
• Mounted Length: 2.76"
• Bolt Hole Pattern: 3 on 2.75"
• Belt Width: .41"
• Inside Diameter: 1.10"
• Outside Diameter:  6-5/8"

Notes:

1. 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.
2. Water Pump Pulley: Mounted length is from the face of the water pump pulley mount towards the front of the engine.
3. 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.

Water Pump ID Chart (GIF)