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Old 02-10-2016, 08:00 PM   #1
Mr Handy
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Join Date: Feb 2013
Location: Spring Hill, Florida
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4 v crank pulley?

So I have added PS to my truck and am working on the same for a friend. I have now come across 3 cast PS crank pulleys with 2 v grooves...
What I'm trying to figure out is... What are all the v's for. Starting from the engine and moving forward.
1 Alt, 2 AC?, 3 PS, 4 ???
This would be for a short water pump small block?
The PS pulley lines up on both trucks so I have no idea what one might be running that would require a 4th V belt.
what am I missing?
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Old 02-10-2016, 08:47 PM   #2
geunther
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Location: Cheyenne, WY
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Re: 4 v crank pulley?

Air pump? Some ac compressors run 2 belts.
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