Classic Engine Tech 1967 - 1981 Engine Related

Gear drive or roller timing chain?

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Old Jun 22, 2006 | 11:07 AM
  #1  
Ron78Z&01SS's Avatar
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From: Wichita, Kansas
Gear drive or roller timing chain?

Just wondering how gear drives are to live with on a "driver"?

I was planning on a double roller chain for my 327 build-up, but for just a little more I could get a ProForm gear drive from Summit for around $90. To top it off, it has a cam button in case I get a wild hair and decide to go roller.

Is the ProForm junk?
Does the gear whine get annoying after a time?
Old Jun 22, 2006 | 03:17 PM
  #2  
Rice Killer87's Avatar
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Re: Gear drive or roller timing chain?

It sounds cool, but I think it would get annoying after a while personally...unless you have a really loud stereo.

Plus,the added friction of the gears takes away power...and we just cant be havin' any of that.

Just my thoughts.h
Old Jun 22, 2006 | 05:56 PM
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Re: Gear drive or roller timing chain?

the harmonics and vibrations froma gear drive eventually wiggle stuff looser and then bad stuff happens. Id go with a roller chain. No racecars run gears.
Old Jun 23, 2006 | 12:59 AM
  #4  
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Re: Gear drive or roller timing chain?

Originally Posted by SSnthe10s
the harmonics and vibrations froma gear drive eventually wiggle stuff looser and then bad stuff happens. Id go with a roller chain. No racecars run gears.
Complete truth!!! The harmonics transferred to the valve train are horrible.
Old Jun 23, 2006 | 01:11 AM
  #5  
84firebird's Avatar
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Re: Gear drive or roller timing chain?

but a timing chain stretchs
Old Jun 23, 2006 | 08:08 AM
  #6  
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Re: Gear drive or roller timing chain?

A good double roller will last for years. Spend a little money for a good qualilty one and you won't have any trouble. I bought a Cloyes for my 383. Nice piece.

Bryan
Old Jun 24, 2006 | 12:19 AM
  #7  
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Re: Gear drive or roller timing chain?

summit brand cough cough is cloyes....double roller for under $50 and it is well made.
Old Jun 25, 2006 | 08:37 AM
  #8  
Guido67SS's Avatar
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Re: Gear drive or roller timing chain?

If money is not an object you could go with a jesel belt drive. Free up some hp and easy to work with.

Maybe not so much money after all. Check this out.

http://cgi.ebay.com/ebaymotors/NASCA...00322600QQrdZ1

Last edited by Guido67SS; Jun 25, 2006 at 08:45 AM.
Old Jun 25, 2006 | 03:12 PM
  #9  
Ron78Z&01SS's Avatar
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Re: Gear drive or roller timing chain?

Thanks guys

Guess I'll stick with a roller chain.
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