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If you mill LS6 heads for 60cc....

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Old Nov 18, 2007 | 05:03 PM
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Default If you mill LS6 heads for 60cc....
If you mill stock LS6 heads for 60cc, will they be strong enough for 11.5:1?
Whats the highest CR for 243 castings?
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Old Nov 18, 2007 | 06:30 PM
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I have Patriot LS6 style heads with 59cc chambers with 11.5:1 compression.

Not sure of the highest CR for 243's though.
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Old Nov 18, 2007 | 06:49 PM
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Originally Posted by TheLS1Kid
I have Patriot LS6 style heads with 59cc chambers with 11.5:1 compression.

Not sure of the highest CR for 243's though.
Does PP start with the 243 casting? What PR size are you running?
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Old Nov 18, 2007 | 06:59 PM
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I'm pretty sure PP starts with raw 243 castings.

I cannot think of my PR length off the top of my head. Sorry.
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Old Nov 19, 2007 | 07:36 AM
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milling them down to 60 cc will have a very minimal effect on their strength.lots of milled down 243 casting heads ( or 241,ect,ect) running around on high compression.
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Old Nov 19, 2007 | 12:30 PM
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Mine are milled down to 60cc and I have a 280 cranking compression.
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Old Nov 19, 2007 | 03:24 PM
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Originally Posted by ONEBADWS6
Mine are milled down to 60cc and I have a 280 cranking compression.
Damn 14:1 compression is insane.

What fuel do you run?

What kind of #'s does that monster put out?
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Old Nov 19, 2007 | 04:36 PM
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Originally Posted by TheLS1Kid
Damn 14:1 compression is insane.

What fuel do you run?

What kind of #'s does that monster put out?
im wondering the same thing ... looks like a lot
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