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Need deep groove pulleys; Got a source?

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Old Dec 16, 2002 | 11:04 AM
  #1  
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Default Need deep groove pulleys; Got a source?

Folks,

My stock 427/390 water pump, crank, and altenator pulleys on my 502 will not keep the belts from squealing when Im WOT.

Can anyone suggest where I could get a set of deep groove pulleys for water pump,crank, and altenator. Cant afford a surpentine system
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Old Dec 16, 2002 | 11:14 AM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

Try Paragon. They have most of the correct parts. http://www.corvette-paragon.com/
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Old Dec 16, 2002 | 11:32 AM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

Give these guys a call, they have pretty good looking stuff, they might have an answer for you. http://www.zoops.com/product-listing.asp?ID=4&offset=24
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Old Dec 16, 2002 | 11:43 AM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

I had trouble years ago when I first started making higher rpm motors. My fix was smaller diameter crank pulley.
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Old Dec 16, 2002 | 12:21 PM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

The oly prob with those aftermarket sites is that they dont state if those pulleys are deep groove or not

Ive bought from Paragon before. If I do go thru them, what model engine should I order for that used deep groove pulleys?
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Old Dec 16, 2002 | 02:09 PM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

I'm not an expert on this but I think some of the 327 hipo engines used the deep pulley. You could also check a few GM performance sites like Pace or Scoggin Dickie. I'm pretty sure I saw deep groove pulleys in the GM Performance Parts Catalog.
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Old Dec 16, 2002 | 02:49 PM
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Default Re: Need deep groove pulleys; Got a source? (vettfixr)

Fixr,

Got what I need, right in the GM perf catalog. I found a BB crank pulley. Ill go one peice at a time until squeal goes away: $60

By the way, parts seem to pretty reasonable. BB aluminum water pump: $115
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Old Dec 16, 2002 | 06:45 PM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

I didn't have the catalog at work because they expect me to do stupid things, like my job. :lol: But I've gone through it at home and you can get some nice parts for reasonable prices. I got my balancer and flywheel through them for about the same price it would have cost me at the local discount parts store.
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Old Dec 16, 2002 | 07:52 PM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

Melvin, make sure that you're running the small belt that goes from the crank to the water pump. Without it, my 427 squealed at full throttle.

-Joe
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Old Dec 17, 2002 | 06:53 AM
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Default Re: Need deep groove pulleys; Got a source? (Flareside)

Flare, not sure by what you mean by small belt from crank to water pump. I have the same belt from crank, water pump to alt. I beleive we have the same. Do you mean a smaller diameter belt?

If so, where do I get one. Ive been to NAPA, autozone, you nameit, same squeal. I didnt have this prob running my 427/390, but my 502 is really squealing the belt at WOT
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Old Dec 17, 2002 | 09:02 AM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

Melvin, if you don't have power steering, your 427/390 should have had 2 belts. One short (in length) belt that only connects the water pump and the crank (in the groove closes to the block). The second belt wraps around the water pump, crank, and alternator. Without both belts, they squeal.

Check out this picture:





I think I got mine from the Corvette Central catalog.

-Joe


[Modified by Flareside, 9:06 AM 12/17/2002]
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Old Dec 17, 2002 | 10:16 AM
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Default Re: Need deep groove pulleys; Got a source? (Flareside)

Flare. Holy cow. I have no PS or AC, and I only have one belt! In your pics, the non ps 527 has two belts. Question: How does the second inner belt as shown fit and tighten? There is a no way to tighten it
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Old Dec 17, 2002 | 10:29 AM
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Default Re: Need deep groove pulleys; Got a source? (MELVIN)

CV products makes very nice aluminum pulley kits.

Marck
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Old Dec 17, 2002 | 10:49 AM
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Default Re: Need deep groove pulleys; Got a source? (Flareside)

How on earth would you expect to TIGHTEN a belt that only goes to 2 unmovable pulleys????? What IS wrong with that picture?
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Old Dec 17, 2002 | 11:00 AM
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Default Re: Need deep groove pulleys; Got a source? (pws69)

How on earth would you expect to TIGHTEN a belt that only goes to 2 unmovable pulleys????? What IS wrong with that picture?
Yep, it's a pain in the butt for sure, but it can be done. You have to loosen the bolts that hold on the water pump pulley, tilt the pulley, install the belt, then tighten the bolts.
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Old Dec 17, 2002 | 01:19 PM
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Default Re: Need deep groove pulleys; Got a source? (Flareside)

It's pretty easy, I ran a short belt between crank & waterpump because I removed the AIR stuff and had a spare one, it's quite usefull in case the other belt snaps at least you have drive to the water pump.

Marck
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