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How to make high compression 346

Generation III Internal Engine 1997-2006 LS1 | LS6

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How to make high compression 346

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May 7, 2006 | 09:26 PM

#1

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From: Fenton, MI

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How to make high compression 346

Im talking like 14:1 high. What would be the best way to do this? Are dome pistons available that will work?

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May 8, 2006 | 12:44 AM

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Yes

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May 8, 2006 | 12:56 AM

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I believe flat tops with proper valve reliefs will get you there(higher compression). Is it possible for chevys 4.8L V8 heads to fit on the LSX Block? Why do u want such high compression? I would say slap on 5.3 L heads and some thinner cometic heads gaskets and call it a day.

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May 8, 2006 | 01:01 AM

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Quote:

Originally Posted by Shinerbock07

I believe flat tops with proper valve reliefs will get you there(higher compression). Is it possible for chevys 4.8L V8 heads to fit on the LSX Block? Why do u want such high compression? I would say slap on 5.3 L heads and some thinner cometic heads gaskets and call it a day.

Flat tops will not get you there. A 10 cc dome may get you there. That is what i'd suggest. Look at TSP and a few other vendors.

Nate

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May 8, 2006 | 02:01 AM

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You're going to need to Angle Mill the heads & use +10 domes more than likely.

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May 8, 2006 | 09:20 AM

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for 14:1 you will need big domes or very small combustion chambers with a flat top =cc probably 45 or less with a flat top and .040-.045 gasket.

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346, 53l, comp, compression, dome, flat, high, higher, make, top

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