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lq4 pistons to -4cc mahle flat top questions

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Old 11-02-2007, 08:30 PM
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Default lq4 pistons to -4cc mahle flat top questions

how much gain would i be getting in compression going from a lq4 piston to a -4cc mahle flat top piston..roughly how much hp gain is this..how big of a shot would this be able to handle?? thinking 225-250..possibly more?
Old 11-02-2007, 08:40 PM
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Originally Posted by dirt_track_racer_81
how much gain would i be getting in compression going from a lq4 piston to a -4cc mahle flat top piston..roughly how much hp gain is this..how big of a shot would this be able to handle?? thinking 225-250..possibly more?

the only concern would be the rods, Im sure it would hold that progressively controlled
Old 11-02-2007, 08:55 PM
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gettin h-beam 6.125..and the heads are ported ls1's with a 66cc chamber and using either .030 or .040 cometic head gaskets
Old 11-02-2007, 09:32 PM
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Which casting? 2618 or 4032
Old 11-02-2007, 10:05 PM
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Compression comes out to 10.062 ish... I think, someone with a clue might want to double check me....
Old 11-03-2007, 04:14 PM
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4032..which one is better
Old 11-03-2007, 05:08 PM
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In very short form...
2618 = Very strong, will take allot of pressure, shorter life, I have heard they tend to ratle a bit more, because of the extra clearince need to run them
4032 = Not as strong, but longer life, also quiter
Old 11-03-2007, 05:36 PM
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Originally Posted by Wilde Racing
In very short form...
2618 = Very strong, will take allot of pressure, shorter life, I have heard they tend to ratle a bit more, because of the extra clearince need to run them
4032 = Not as strong, but longer life, also quiter
how much do you think i could spray them?
Old 11-03-2007, 06:35 PM
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I have no idea. all the research I've done makes the 4032 sound like a slightly stronger than stock piston, so I'll be running the 2618's in my engine. check out LS1tech side, there is A TON of info on pistons over there.
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