L33 with LS1 Heads

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Feb 24, 2012 | 05:16 PM

ZQ8LS1

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L33 with LS1 Heads

I am building a 5.3 aluminum block with flat top pistons...will the LS1 (853) heads be a good combo for a stock daily driver ???

I can get a good set for $100.

Feb 24, 2012 | 06:06 PM

wildcamaro

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Do you have the stock 799 heads? They are better...with the ls1 heads you will lose a lil bit of compression..you would go from 9.9:1 to like 9.7-9.75:1 compression...you can get ls1 stock heads for under 100 bucks all day on parts classified...but a 100 for nice clean heads aint bad at all.

Feb 24, 2012 | 06:43 PM

garygnu

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you should get 853 heads for free,unless there are rebuilt.you can get some used 243/799 heads for $400,worth 15 more hp.do a good valve job and get some good springs.look at TSP for heads ,parts ,and a cam.

Feb 24, 2012 | 07:04 PM

ZQ8LS1

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Quote:

Originally Posted by wildcamaro

No I dont,I bought the bottom end & building a motor. Not looking for all out power,just a daily driver with better power than a 4.3.

Trying to keep the price down so I can get this thing in (S10) & peps are getting $400 plus for the 799's.

So the LS1's will work ??

Thanx for your input .

Feb 24, 2012 | 07:49 PM

mcfarlnd

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Wouldn't be my head choice, they will work though. Get the 706 heads or the 863 heads that came on the lm7 and 4.8s. They will put you in the 10.4:1 range.

Feb 24, 2012 | 08:07 PM

wildcamaro

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Yea def I would go with the 5.3 heads before ls1 heads because these engines like compression...but the 853s you speak of will work just fine...

Feb 24, 2012 | 08:37 PM

ZQ8LS1

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Thanx guys,just looking to get this running & found a set of 853 heads for $100 shipped.

Once I get it in then I will work on the performance end,its costing a lot to get it in as is so just looking to keep the cost down.

What head gasket would I use ?? 5.3 or 5.7 or are they the same ?? I might even bore it to 5.7.....