Anyone know the CC's of 241 heads milled to .035?
04-13-2007, 02:02 PM
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Originally Posted by brad8266
Around 57cc or 58cc.
I've milled some 317 heads .030" and it only knocked off ~3.5 cc. The chambers are shaped differently between the 6.0L heads and the LS1 heads, but it's not going to be such a dramatic reduction in combusion space. For those 317 heads one cc was removed by machining off .0085" on average over the first .030" milled.
A .030" mill on a LS1 head is generally accepted as producing a 62cc chamber. Given some more time, I'll be able to post up my own findings on how milling affects combustion space on a 853/241/806 head.
In closing, milling .035" off a LS1 casting will not get you a 57cc chamber- I can say that. To get that small means you'd have to be removing around .004" to get rid of 1cc of chamber. More material has to come off the deck to get a cc off than that.
Ben T.
Last edited by Studytime; 04-13-2007 at 02:13 PM.
04-13-2007, 05:01 PM
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Originally Posted by Beast96Z
Subtract 1cc for every .007". That'll get you close.
Ben T.
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04-13-2007, 05:06 PM
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I stand corrected, I was thinking of the LS6 head, he has 241 LS1 heads.
Yes it would be more like 60-61cc's. Sorry about that, i cant be perfect all the time. 
Yes it would be more like 60-61cc's. Sorry about that, i cant be perfect all the time.
04-13-2007, 05:09 PM
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Originally Posted by brad8266
I stand corrected, I was thinking of the LS6 head, he has 241 LS1 heads. Yes it would be more like 60-61cc's. Sorry about that, i cant be perfect all the time.
Yes it would be more like 60-61cc's. Sorry about that, i cant be perfect all the time. 
You are usually on your game time after time. I knew something simple had come up. Sounds good Brad!
Ben T.
04-13-2007, 05:13 PM
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Thats why we have a lot of people here that know their ****. So when one of us makes a simple mistake someone else will come along and correct the mistake. That way the person asking the question gets the right answer and doest mess their car up.
04-13-2007, 05:18 PM
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See, you guys do come in handy.
Originally Posted by brad8266
Thats why we have a lot of people here that know their ****. So when one of us makes a simple mistake someone else will come along and correct the mistake. That way the person asking the question gets the right answer and doest mess their car up.
