Head casting # to compression ratio?

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Posted by chriscase on Wednesday, September 03, 2008 at 13:11:15 :

Dodge flat heads. Perhaps the 218 heads were smaller/higher- they ought to be if the extra 12 cubic inches of the 230 made the same compression ratio. About .3 maybe?

I've found one rebuilder's catalog on the net that gives about six numbers, but have also found numbers not on that list.

Also, OE head thickness, before anybody milled it?

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Re: Head casting # to compression ratio? - John in NH 13:51:33 09/03/2008

The list from Enginepartswarehouse , pdf - chriscase 17:26:45 09/03/2008

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