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Old 10-26-2009, 12:01 AM
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Switch from serpentine to V belt

I have a GM OEM serpentine system on my 454. The previous ownersaid the set-up was from a '84 dually. It has A/C, that is not hooked up nor will it ever be hooked up. I'm just using it as an idler pulley. I want to get rid of it but I can not find a OEM serpentine system without A/C, and I do not want to spend the money on a aftermarket set-up. So with all this being said....

I want to switch to a V belt set up. My question is will I be able to use my current water pump, alternator, and power steering pump if I do? Or will any of these things rotate in the wrong way with a V belt.

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Old 10-26-2009, 12:11 AM
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Hmm never mind guys, looks like I found an idler pulley. So question is will this work?

http://cgi.ebay.com/ebaymotors/Chevy...item2ea4c54d9a
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Old 10-26-2009, 02:23 AM
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The bypass pulley will work fine. I`ve switched many a small block from V belt to serpentine, your the first case I ever seen wanting to do the opposite. glad you found something to compromise as it wouldn`t have taken long before you would have likely wished you hadn`t switched.
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Old 10-27-2009, 02:32 PM
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Amen to the above............
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Old 10-28-2009, 03:48 PM
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hmm interesting i never knew they went to serpentine so early on these.

earliest i ever knew they gm went to serpentine on the v-8 was in '85 with the 305 etc in the cars and trucks but it was only half serpentine

because i know the 84 were still v belt at least on the sb engines,

interesting..

got a pic?

you should be able to take everything from a v belt 454 and put it on yours.
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Old 10-28-2009, 04:21 PM
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I'm *almost sure* that water pumps are the opposite rotation from v-belt to serpentine.
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