GM Alternator 5/8 Inch Wide Belt Pulley, Aluminum

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 aluminum pulley is designed to fit on a GM alternator and use a 5/8" drive belt.

• Used on popular GM externally regulated, "SI" and one-wire alternators
• Fits 1963 and newer GM alternators
• Allows the use of the 5/8" wide flathead Ford style V-belts
• Attractive and durable aluminum construction