Crankshaft pulley

[crobjones2]

Lots of questions tonight...
I am trying to find the part # for the crankshaft pulley for a 69 SS350 a/c ps no AIR
I know it is supposed to have 3 grooves
the AIM UPC6-A12 RPO C60 with RPO N40 is what I am looking for.
Any ideas? is 3932428 CH correct?
Thank you
Chris

[JohnZ]

Check this out:

    http://www.camaros.org/pdf/pulleys-69-2007-02-01.pdf

[crobjones2]

Thanks John
That was the exact information I was looking for
Chris