There 101.9cc and they are semi-open, relief at the casting in the chamber opposite the valves!
 
Larry
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Craig Ellis
Sent: Monday, January 27, 2003 7:29 PM
To: Chevelle
Subject: [Chevelle-List] Combustion chamber size

Does anyone have reliable info on the combustion chamber size of GM's large oval port heads? I've got a set of 3964290's (290's) and I can't seem to find what the combustion chamber volume is supposed to be from the factory.
 
C. Ellis

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