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benifits of ls6 heads over ls1 heads

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Old 07-30-2007, 08:51 PM
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Default benifits of ls6 heads over ls1 heads

what are the benefits of having ls6 heads on an ls1 motor? can you feel the difference? and is it worth the money to swap them out?
Old 07-31-2007, 11:11 AM
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might want to check the internal section as there ismore info there .
the ls6 has a smaller cc that bumps compression and the fact they flow better . do some port work and they are good to go .
Old 07-31-2007, 11:33 AM
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Here's my LS1TECH educated guess:

LS6 heads with .040 Cometic head gasket to bump compression and better quench will add maybe "20hp". Figure in 8.7/1 DCR (slight seat of the pants power difference)

FAST 90mm intake will add "10hp", MAMO ported 90Mmm FAST will add "20hp". (slight seat of the pants power difference)

Just for instance, if your LS1 car is making 360hp with a 224/228 cam and headers, you should be making atleast 400hp with both of the above mods. (40 hp is a good power difference).

100hp Nitrous System is very noticable and cheaper also.

Last edited by gollum; 07-31-2007 at 11:50 AM.
Old 07-31-2007, 11:46 AM
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Originally Posted by gollum
Just for instance, if your LS1 car is making 360hp with a 224/228 cam and headers, you should be making atleast 400hp with both of the above mods. (good power difference over stock)
Just for reference, most cars with a 228 or bigger cam and full bolt ons are making near 400hp or more to the wheels with a tune.




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