The Cast iron pulley application. 3923898 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Accelo** · 01-30-2022, 02:49 AM

I have a couple of these pulleys and was wondering exactly is the application. Best guess it a BBC C10 Truck. Anyone help me out? I think I got the casting number correct?

**uncle** · 01-30-2022, 08:43 AM

In my experience with those it is a small block add on crank pulley. It is normally accompanied with the same power steering pump pulley as a big block if that makes any sense.

**FirstOwner69** · 01-30-2022, 07:25 PM

These may help. My '69 with 350 and A/C.

01-30-2022, 02:49 AM	#1
Accelo Senior Member Join Date: Mar 2015 Location: washington Posts: 2,295	The Cast iron pulley application. 3923898 I have a couple of these pulleys and was wondering exactly is the application. Best guess it a BBC C10 Truck. Anyone help me out? I think I got the casting number correct? Attached Images

01-30-2022, 08:43 AM	#2
uncle Senior Member Join Date: Aug 2003 Location: Conyers,Ga. Posts: 7,288	Re: The Cast iron pulley application. 3923898 In my experience with those it is a small block add on crank pulley. It is normally accompanied with the same power steering pump pulley as a big block if that makes any sense.

01-30-2022, 07:25 PM	#3
FirstOwner69 Senior Member Join Date: May 2010 Location: Wisconsin & Arizona Posts: 4,852	Re: The Cast iron pulley application. 3923898 These may help. My '69 with 350 and A/C. Attached Images __________________ Jim



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