ls6 heads vs ls1 heads

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Aug 20, 2003 | 09:30 AM

30th t/a

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From: Butler, PA

ls6 heads vs ls1 heads

basically are they worth the money over the ls1 heads? roughly how much more rwhp will they make over a good ls1 head. the cams i was looking at is the tr224 or the tr230.

Aug 20, 2003 | 09:35 AM

deviate42

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From: Houston, TX

Re: ls6 heads vs ls1 heads

for those cams the 5.3L or LS1 heads are fine. The LS6 heads arent really worth the money on stock Cube engines. The p&pLS6 heads take off over p&pLs1 heads around .570" - .600"+ lift.

you may see 10rwhp more with LS6 heads over LS1 with those cams

Aug 20, 2003 | 11:45 AM

RoyO

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From: Windsor,Ct 06095

Re: ls6 heads vs ls1 heads

From what I ve read LS6 heads flow better out of the box.For what youd pay for new LS6 heads you could get your heads ported and get more from them with the cam.

Aug 20, 2003 | 02:02 PM

30th t/a

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From: Butler, PA

Re: ls6 heads vs ls1 heads

im talking like a set of gtp or tea 5.3 vs a set of ported ls6 heads. i know ported ls1 heads will beat stock ls6 heads, thanks guys. anybody else?

Aug 20, 2003 | 02:59 PM

BIG PD

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From: tega cay, SC

Re: ls6 heads vs ls1 heads

ported ls6 heads flow around 320-330
ported ls1 or 5.3's flow around 300-310
possible 10hp right there but u have to decide if you wanna spend the extra grand...i wouldn't and all i do is drag race my car.

Aug 20, 2003 | 03:03 PM

Phil99vette

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From: Port Tobacco, MD

Re: ls6 heads vs ls1 heads

I have ported 5.3 heads that flow 313 and 22X @ .600. I have a slick motor combo that can be duplicated pretty inexpensively. Question now is will the port make good HP.
Phillip

Aug 20, 2003 | 04:09 PM

Ragtop 99

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From: Bethesda, MD

Re: ls6 heads vs ls1 heads

you have to see if your porter gets more flow at mid lift from its LS6 heads without reducing port velocity. heads with extra flow at .550 or .600 don't do much given almost no hydraulic cams go over .600 lift and very few hydraulic cams spend much time at .550 or above.

If you go solid roller, there could be good gains on the flow above .550 with LS6 heads.