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806 heads ??'s

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Old Feb 26, 2009 | 04:56 PM
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Default 806 heads ??'s

I found a deal on a set of 806 heads and I know they will bring my compression down but I'm going to have them milled to bring compression back up. My ?'s are will milling cause a problem with the intake sealing and do you think swaping out my 241 for the 806 will give me about the same performance as my stock 241's.

Thanks
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Old Feb 26, 2009 | 05:27 PM
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806 are the older heads found on 97-98 ls1s. the 241s are worth more unless the 806s are ported.
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Old Feb 26, 2009 | 05:46 PM
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They have been worked over. Does anyone have the specs for the 806 heads??
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Old Feb 26, 2009 | 06:00 PM
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http://www.performancetrucks.net/for....php?p=4122064
make sure you either weld the gaps on the 806 heads or use the gaskets for the 97-00 models. you also will need the perimeter type valve covers.
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Old Feb 26, 2009 | 06:37 PM
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i have the 806 heads on my trans am i always wanted to know the specs on this heads
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Old Feb 26, 2009 | 08:05 PM
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Originally Posted by sroach20
http://www.performancetrucks.net/for....php?p=4122064
make sure you either weld the gaps on the 806 heads or use the gaskets for the 97-00 models. you also will need the perimeter type valve covers.
Thanks for the info.

Does anyone know where I can get the specs on the heads. I know the specs for my 241 heads. I dont want to buy these heads and not gain or just stay the same with performance.
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