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will the ls7 head fit an ls1 block????

Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

will the ls7 head fit an ls1 block????

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Old

Jan 17, 2007 | 02:40 PM

#1

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Staging Lane

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will the ls7 head fit an ls1 block????

i am looking for a new set of heads for my blower car. will the new World Products LS7X Warhawk Cylinder Heads from gm performance fit the ls1 style block?? if not what head would you recommend?

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Jan 17, 2007 | 02:53 PM

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I think they require a bigger bore. I think with the L92 heads you have to have a 4" bore and the LS7 valves are a touch bigger so you may need slightly more bore than that.

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Jan 17, 2007 | 03:27 PM

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From: Extreme Performance Salem Indiana

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Quote:

Originally Posted by edstrokedta

i am looking for a new set of heads for my blower car. will the new World Products LS7X Warhawk Cylinder Heads from gm performance fit the ls1 style block?? if not what head would you recommend?

I use the ET Performance 255 heads, and have had great luck with them

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Jan 17, 2007 | 03:30 PM

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i think you need a 4.125 bore

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Jan 17, 2007 | 08:37 PM

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Staging Lane

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thanks for the input, where can i find out more about the ET Performance 255 heads??

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Jan 18, 2007 | 10:17 PM

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their website etperformance.com

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