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1969-1985 Small Block Chevy Aluminum Double Lower Pulley, Long Pump

Specs
Material Type:
Aluminum
Sold in Quantity:
Each
Finish:
Natural
Overall Diameter:
6.60
Inside Diameter:
1.10
Belt Type:
V-Belt
Mounted Length:
2.69
Bolt Hole Pattern:
3 on 2.75
Belt Width:
.41
Groove Count:
2
Notes
Mounted length is from the face of the harmonic balancer towards the front of the vehicle.
1969-1985 Small Block Chevy Aluminum Double Lower Pulley, Long Pump1969-1985 Small Block Chevy Aluminum Double Lower Pulley, Long Pump
1969-1985 Small Block Chevy Aluminum Double Lower Pulley, Long Pump

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Details

Reviews

Q & A

What's in the Box

Cast aluminum double groove V-belt crankshaft pulley for use with '69-'85 Small Block Chevy long style water pumps.

  • Precision machined aluminum construction
  • Lightweight and strong
  • Two grooves for V-belts

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

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 ID Chart (GIF)

Item Details

Double Groove, 6-5/8" Diameter

You may also be interested in:

1969-1985 Small Block Chevy Aluminum Single Upper Pulley, Long Pump
(Part #91015475)
                        

Cast aluminum single groove V-belt upper pulley for '69-'85 Small Block Chevy long style water pumps. Fits over 5/8" water pump snout, but can be drilled out to 3/4" if needed.

  • Precision machined aluminum construction
  • Lightweight and strong
  • Single groove for V-belt
  • From inside of pulley at fan hub to rear edge of pulley is 2"
  • From rear edge of pulley to center of V-belt groove is 5/16"
  • Center hole fits a 5/8" shaft (can be drilled out to 3/4" if needed)
  • Diameter is 6-5/8"

Note:  When using in conjunction with an electric fan assembly, be sure to consider the pulley installation screw kit # 910-15440 shown below.

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

Small Block Chevy Alum. Long Pump Double Groove Upper Pulley
(Part #91015476)
                        Cast aluminum double groove V-belt upper pulley for '69-'85 Small  Block Chevy long style water pumps. Fits over 5/8" water pump snout, but can be  drilled out to 3/4" if needed. 
  • Precision machined aluminum construction
  • Lightweight and strong
  • Two grooves for V-belts
  • Hub surface to first groove center: 2.415"
  • Center-to-center of grooves:  11/16"
  • Center hole fits a 5/8" shaft (can be drilled out to 3/4" if needed)
  • Diameter:  6-5/8"

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.

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.

Aluminum Lower Pulley Spacer
(Part #91015721)
                        Spaces lower pulley out to match with the upper pulleys. Each spacer is .090" thick aluminum.
                    
Aluminum Lower Pulley Screw Kit, Fine Thread
(Part #91015441)
                        

Set of three Allen bolts for lower aluminum water pump pulley.

  • Fine Thread
Universal Water Pump Shim Kit
(Part #54564035)
                        

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.  SBC - Short vs Long Water Pump