Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#7
08-19-2005, 05:02 PM
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Re: h/p alt pulley
You can still find 831's out there,NOS & used,but you have to look.
The #387 has a 3&5/8 outside diameter,shaft diameter 43/64. The #831 has a 3&3/16 outside diameter,shaft diameter 11/16. No,not all the repops are Gold cad.The current Delco Gold Cad plated repop is not a period correct shade for the late 60's-early 70's Vehicles on the assembly line.There are subtle design differences as well.  
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