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

EFI 24x Timing Chain

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Old May 7, 2011 | 05:43 PM
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Default EFI 24x Timing Chain

I'm going to get the billet front cover, can I just run a normal like Cloyes hex adjust with this setup, or what should I go for.

I want a badass chain for high RPMS, high comp, etc....

what are you fast guys using
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Old May 7, 2011 | 06:20 PM
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I don't call my junk fast, but I'm using a Hex adjust on both my motors.
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Old May 7, 2011 | 06:24 PM
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What is the advantage of the hex adjust, the cloyes 9-3145 says it it is adjustable as well?
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Old May 7, 2011 | 06:37 PM
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Originally Posted by gregrob
What is the advantage of the hex adjust, the cloyes 9-3145 says it it is adjustable as well?
My cam is on a LSA is 107.5 it gives you plenty of adjustment if you need it.
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Old May 7, 2011 | 06:47 PM
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So does the 3145 non hex adjust.

I think the difference is ease and range of adjust ability. With the hex adjust you can go fractions of degrees, and it's easier than swapping the keys like with the other kit.

I went with the normal 3145 though. I make sure my cams are ground the way I request them so I dont have to screw around with it too much
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Old May 7, 2011 | 07:21 PM
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I dont really have input on this, I used the GM performance parts single roller. Im only going to be spinning to 6700 tho. I think the cloyes kit you are talking about has a really good rep with all of the lt1 fast guys.

Oh and how do you like your coil brackets?
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Old May 7, 2011 | 07:26 PM
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Havent had them in my hands yet, still out of town working but I'm sure there as pimp in person as the pics

I'll send you pics when I get them on the engine.
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Old May 7, 2011 | 07:28 PM
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Originally Posted by gregrob
Havent had them in my hands yet, still out of town working but I'm sure there as pimp in person as the pics

I'll send you pics when I get them on the engine.
Sweet, whats strange is there really hasnt been much interest in them. Considering the price, I would think people would be all over them. Oh well.
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Old May 7, 2011 | 08:53 PM
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There isn't a ton of conversions being done I would guess. Get Steve to put them on his site.
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Old May 7, 2011 | 09:16 PM
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yea PM sent green96ta
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Old May 7, 2011 | 11:38 PM
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Not fast, more junk, but I have been using a Comp Double Roller
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Old May 8, 2011 | 03:37 AM
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Ive heard good things about the high end comp rollers. We will see how this Cloyes works out on this engine.
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Old May 8, 2011 | 04:39 AM
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I've received a little feedback regarding double row timing sets...

Originally Posted by Glen
Comp Cams 2136 vs Cloyes 9-3145
Here is a follow up on the timing chain set. I just got the Cloyes Double roller set in today (9-3145). The thickness of the Cloyes crank sprocket is practically identical to the Comp crank sprocket at the base, but is .002 thicker at the teeth.

The Comp was .5450, and the Cloyes is .5451 at the base. The Comp is .6074 at the teeth, and the Cloyes is .6093.

The tension of the chain with the Cloyes is night and day. It barely deflects at all, whereas the Comp chain was a sloppy mess. According the the Cloyes tech support person, the Cloyes set is a matched set, whereas the Comp set is pieced together from loose parts.
Originally Posted by Brian
Cloyes 9-3145
Just wanted to let you know that I got back from the dyno and made some very nice numbers...I have a forged 383 LT1 with a f1a Procharger and 24x kit. The kit had zero issues and I was able to retain the 5 wire maf on 15psi.

Numbers were:
709rwhp/616rwtq STD
694rwhp/603rwtq SAE

Again, the kit worked just as it should and I also was able to use the Cloyes 9-3145 double roller timing chain without a problem.
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Old May 8, 2011 | 04:56 AM
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Thanks for the confirmation.
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Old May 8, 2011 | 09:03 AM
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I am using the Cloyes Double Roller as well...motor was built in 2003 first cam was on the small side (222/228). Installed the current cam in 2006 246/254), shift point of 6800.
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Old May 9, 2011 | 10:41 AM
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Great info on the Cloyes double roller.
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