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

Head gasket and Timing Set

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Old 12-15-2010, 04:45 PM
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Default Head gasket and Timing Set

Which head gaskets would you run with a stock lt1 with le3 heads?

Also which timing set?
Old 12-15-2010, 05:28 PM
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impy's if you want to bump up the compression a bit.
Are you going with a EWP, if so any quality dual roller will work.
Old 12-15-2010, 05:47 PM
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An LT1 is far from stock with LE3 heads. Clarify. If there's any sort of higher compression/power, I'd use Cometic MLSs.

Timing set depends on what you're using for a water pump, and whether or not you've got a vented opti.

Vented opti, EWP, and a 95 timing cover = Cloyes 3145 double roller, hands down.
Old 12-15-2010, 06:19 PM
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pretty sure you have to fly cut stock pistons or use aftermarket pistons with bigger valve reliefs for LE3s.
Old 12-15-2010, 06:25 PM
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Man now. I am lost. Been told that with le3 heads and the cc503 cam it would be ok and then some say it can't be done on stock pistons. Guess I am going to call Lloyd tomorrow and clarify. Which MLS Gasket thickness should I get if these heads will work and also I do want to run a EWP. The motor is a 96 so I don't know if the opti is vented or not.
Old 12-15-2010, 06:26 PM
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That is true i didnt think of that till you said it...
Old 12-15-2010, 06:27 PM
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ya your opti is vented and I run a EWP. Says that about the LE3s right on LEs site
Old 12-15-2010, 06:34 PM
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Ok. I will call Lloyd tomorrow and ask whats up. I was looking on Summits website and they had 3 different Cloyes 3145 sets. Which do I want?
Old 12-15-2010, 06:54 PM
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Originally Posted by Choppers
Ok. I will call Lloyd tomorrow and ask whats up. I was looking on Summits website and they had 3 different Cloyes 3145 sets. Which do I want?
if its a Cloyes dbl tru roller for lt1 should be http://www.summitracing.com/parts/CLO-9-3145/
Old 12-15-2010, 06:55 PM
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So do I need the 95 timing cover or will the 96 I have be ok?
Old 12-15-2010, 06:57 PM
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Originally Posted by Choppers
So do I need the 95 timing cover or will the 96 I have be ok?
95,96 and 97 should be all same ..not sure on 95 obd1 motors tho ..damn work comp crashed out sorry about edit after edit and yes on the interior

Last edited by ScrapSilicon; 12-15-2010 at 07:03 PM.
Old 12-15-2010, 07:07 PM
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96s and 97s have the provision for the CKP sensor. You can use either cover, but you'll have to find a way to plug the provision. Ideally, the 95 cover is the best to use.

Also, I don't know why you'd use LE heads with an off-the-shelf cam. Why not go with whatever LE recommends?
Old 12-15-2010, 07:08 PM
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iIth the deal I got on ls7 lifters and cam you can't pass it up. Also got a steal on the heads and intake.
Old 12-15-2010, 07:14 PM
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I'll never understand how saving a few bucks can be more important in a build than achieving or even surpassing your goals.
Old 12-15-2010, 07:16 PM
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All I wanted was 400 rwhp. I think i'll be pretty damn close. What you think?
Old 12-15-2010, 07:19 PM
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I paid $250 for the ls7 lifters and cam which are new. Can't beat that IMO.
Old 12-15-2010, 07:22 PM
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Originally Posted by Choppers
All I wanted was 400 rwhp. I think i'll be pretty damn close. What you think?
Maybe, maybe not. You never know. I know it would be much easier (and far less guesswork) if you had a custom grind designed to do what you want.

Originally Posted by Choppers
I paid $250 for the ls7 lifters and cam which are new. Can't beat that IMO.
Like I said, I don't understand how saving $$$ can be more important than reaching your goals, especially when spending a bit more would ensure it. JMHO.
Old 12-15-2010, 07:32 PM
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sell your cam and put the money towards a custom LE cam.
Old 12-15-2010, 07:46 PM
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I may end up doing that. My goals were a clayton forged short block but 3k is alot to fork out when I have a running lt1 now. May just sell the cam and build another motor on a stand.



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