Resleeve an iron LSX.....highest compression N/A...??

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Oct 24, 2015 | 03:11 PM

LS6427

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Resleeve an iron LSX.....highest compression N/A...??

Bore the sleeves to 4.250"
Stroke it to 4.125"
468ci.

How much compression could you run N/A with 6-bolt heads and full time RACE GAS or E85?

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Oct 24, 2015 | 09:38 PM

Strokedcamaroz28

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From: athens, ga

im running just about 15:1 on a sleeved aluminum block.... so should be able to go more than that

Oct 24, 2015 | 10:12 PM

Zmg00camaross

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Was going to say a bunch! 15.1+

Oct 25, 2015 | 01:50 AM

DietCoke

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I ran 15 on an al block with e85. Could probably get away with more, but to what end? At some point it limits the timing you can throw at it

Oct 25, 2015 | 07:06 PM

LS6427

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I ask because me and a friend want to build something crazy. N/A....raw power. Race gas or E85......max effort.

If we go say 16:1 cr.....can we still spray it with nitrous? If so, how much?

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Oct 25, 2015 | 09:31 PM

NAVYBLUE210

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From: Coast of San Mateo County Between Pacifica & HMB

I did not think one could/should bore the LSX Iron block beyond 4.20"
Especially with power adders.

Oct 25, 2015 | 10:39 PM

CAMSTER

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I have run 13 to 1 on E85 and is a delight running 14.1 to 1 at present on E85 and like it but for street purpose 13.5 would be my choice if I was to do it again though this ls3 is quite a beast.