LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Single Row Timing Chain

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Old Mar 10, 2010 | 10:05 PM
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Default Single Row Timing Chain

I need to know what is the best single row timing chain? I have an EWP, so I dont need to use a stock-style chain. I am running the LSx PCM conversion with the stock timing cover so I am limited to a single row chain.

I am also trying to free up as much power as I can, so should I look for a roller type chain? OR should I stick to the link belt (which is stronger?)

Thanks guys!
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Old Mar 10, 2010 | 10:09 PM
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What valvetrain are you running? Any heads/cam/etc. that would possibly need the use of a thicker chain?

What do the folks at eficonnections suggest?
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Old Mar 10, 2010 | 10:22 PM
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It is a pretty stout heads/cam car.

How does this one look?
http://www.summitracing.com/parts/CLO-C-3001K/

EDIT: I will send EFI an email
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Old Mar 11, 2010 | 08:25 AM
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LT4 Extreme Duty Timing Set used to be a popular choice for more aggressive engines, but I hope you're sitting down when you see the price.
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Old Mar 11, 2010 | 08:33 AM
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Originally Posted by Birdie2000
LT4 Extreme Duty Timing Set used to be a popular choice for more aggressive engines, but I hope you're sitting down when you see the price.
I dont need an LT1/LT4 kit with the water pump drive gear. I have an electric water pump.
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Old Mar 11, 2010 | 11:21 AM
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Originally Posted by ThreeHonks
I dont need an LT1/LT4 kit with the water pump drive gear. I have an electric water pump.
yeah. I got ya there but it's gonna prolly ber hard to find a good single roller outside of the lt4. They were supposed to be workin on a timing cover that would house the reluctor & a double roller. I think a couple guys have modded the cover and made the kit work with the reluctor tho.
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Old Mar 11, 2010 | 12:45 PM
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I have a brand new Cloyes LT4 set for sale.
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Old Mar 11, 2010 | 05:09 PM
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I run a progear timing set, very well made and not too expensive.

Last edited by fex77k; Nov 30, 2010 at 01:36 AM.
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Old Mar 11, 2010 | 07:05 PM
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Originally Posted by Birdie2000
LT4 Extreme Duty Timing Set used to be a popular choice for more aggressive engines, but I hope you're sitting down when you see the price.
not as bad price wise as the comp setup. 500 smackaroos.
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Old Mar 11, 2010 | 07:08 PM
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If your running an EWP I would get a double roller
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Old Mar 11, 2010 | 07:44 PM
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Originally Posted by BLK95-Z
If your running an EWP I would get a double roller
Apparently it's not an option with the EFIConnection 24x setup.
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Old Mar 11, 2010 | 07:48 PM
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Originally Posted by jaycenk
not as bad price wise as the comp setup. 500 smackaroos.
Holy crap! Got a part number? I'd hope it's a belt drive for that price.
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Old Mar 11, 2010 | 07:56 PM
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Originally Posted by RamAir95TA
Apparently it's not an option with the EFIConnection 24x setup.
really? why?
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Old Mar 11, 2010 | 09:31 PM
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There is the Progear as mentioned and Cloyes makes a single roller (9-3157).
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Old Mar 11, 2010 | 10:31 PM
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how much can these single rollers take? In the future im going to build a high-winding solid roller engine with an EFIconnection conversion. Is a single roller enough for lets say 7500-8000 RPM on a solid roller? Or at that point does one need to start looking at spending the $300 bones on the billet timing cover that will fit a double roller?
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Old Mar 11, 2010 | 10:40 PM
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Originally Posted by JoeliusZ28
how much can these single rollers take? In the future im going to build a high-winding solid roller engine with an EFIconnection conversion. Is a single roller enough for lets say 7500-8000 RPM on a solid roller? Or at that point does one need to start looking at spending the $300 bones on the billet timing cover that will fit a double roller?


Tony's spinning his 396 deep in the 7000's and is running a Comp Dual roller.
I wouldn't try any stock timing sets that's for sure.
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Old Mar 11, 2010 | 11:11 PM
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Originally Posted by fex77k
Tony's spinning his 396 deep in the 7000's and is running a Comp Dual roller.
I wouldn't try any stock timing sets that's for sure.
yea i know its doable with double rollers. Im going to be dropping mad cash on valvetrain parts so i guess it only makes sense to spend some more on a timing cover that allows me to run a double. But if im going to spend $200+ on a timing chain i might as well get the billet cover and keep what i have. I would still like to know if single rollers are capable of that kind of load though. Most people in that territory have double rollers because they are running FAST systems (im guessing).
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Old Mar 12, 2010 | 07:19 AM
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Originally Posted by RamAir95TA
Apparently it's not an option with the EFIConnection 24x setup.
The limitation of a single row timing set is the stock GM 96-97 timing cover. When developing the shape of the 24x reluctor, all options were exhausted (we actually separated a protoype reluctor on the lathe) in an attempt to allow a double row chain, crank reluctor, and stock GM timing cover.

The solution is a billet aluminum timing cover that allows the extra crank seal clearance needed for both double row timing chain and crank reluctor. This also requires the 24x reluctor for single/double row chain rather than the 24x reluctor for single row only...simply something that has to be mentioned when ordering a conversion package.



While it is true that you could cut a stock timing cover, move the crank seal area forward, and weld it shut, the next problem is clearance issues with the cam sensor housing. Even with the billet timing cover, the cam housing is only a few thousandths clearance gap between the timing cover. In other words, reworking the stock GM timing cover will be a tedious job.

It's unfortunate that GM did not move the crank seal area out a few thousandths.
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Old Mar 12, 2010 | 11:30 AM
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Originally Posted by S10Wildside
The limitation of a single row timing set is the stock GM 96-97 timing cover. When developing the shape of the 24x reluctor, all options were exhausted (we actually separated a protoype reluctor on the lathe) in an attempt to allow a double row chain, crank reluctor, and stock GM timing cover.

The solution is a billet aluminum timing cover that allows the extra crank seal clearance needed for both double row timing chain and crank reluctor. This also requires the 24x reluctor for single/double row chain rather than the 24x reluctor for single row only...simply something that has to be mentioned when ordering a conversion package.



While it is true that you could cut a stock timing cover, move the crank seal area forward, and weld it shut, the next problem is clearance issues with the cam sensor housing. Even with the billet timing cover, the cam housing is only a few thousandths clearance gap between the timing cover. In other words, reworking the stock GM timing cover will be a tedious job.

It's unfortunate that GM did not move the crank seal area out a few thousandths.
That's a nice piece!!!
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Old Mar 12, 2010 | 02:02 PM
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I just went ahead and ordered the Cloyes 3157 Original True Roller. You guys think it will be ok?
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