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Product Summary

2.89" Overall Diameter, 1.30" Overall Thickness, Steel

  • Adapts GM alternator to original 5/8" belt
  • Durable and attractive chrome finish
  • Fits 1963 and newer GM alternators

Key Specs

MFG. Part #91016251
BrandSpeedway Motors

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Details

So, you've converted over to a 12-volt electrical system and bolted a GM alternator to your flathead Ford V8. Now it's time to install the belt and pulley, but your engine uses a 5/8" belt and the alternator pulley is 1/2"! Don't worry – Speedway has you covered. This chrome pulley is designed to fit on a GM alternator and use a 5/8" drive belt.

  • Allows the use of 5/8" wide flathead-style belts on popular GM externally regulated, "SI" and one-wire alternators
  • Durable and attractive chrome finish
  • Fits 1963 and newer GM alternators

 

Specifications

KEY SPECS
MFG. Part #91016251
BrandSpeedway Motors
GENERAL
Overall Diameter2.89"
Overall Thickness1.30"
Belt Width.63"
Material TypeSteel
Inside Diameter.67"
Groove Count1
FinishChrome
Sold in QuantityEach