525sc Crank Pulley
 

A 525sc had a one piece crank pulley with 3 v belts and a 10 groove serpentine to run the blower? Was the crank pulley 6" and the blower pulley 3"? Anyone know where I could get my hands on a used 525 crank pulley since they are no longer available? A 6" 10 groove insert is not available from what I can tell. Thanks

99% sure stock sizes were 7" lower and 3.5" upper.

Ok thanks makes sense they only offer an add on 7" pulley but means I'll need to find a 3.5" top now or bigger because I have a 3". Hoping to find used I'm getting a fortune tied up in this thing found a mag motor putting the inconel valves, head gaskets etc in it so its good to go. If anyone is looking for the 10 rib gates belts for these a guy is selling them on ebay for $15 for 2 shipped.

good deal wheres the Link ???

I can't paste the link here on my phone but the ebay item # is 130491508307.