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Old 04-18-2002, 09:40 PM
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dkn1997 dkn1997 is offline
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Default stock 346 head cc's

I have a set of stock set of "346" heads on my big block and was wondering BALL PARK how many cc's they are.

I realize that it is impossible to tell exactly without cc'ing them, but does anyone out there know what the factory says they are supposed to be?

mine are not milled or modified with the exception of the bigger valves 2.14/1.81
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Old 04-19-2002, 05:19 AM
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Big Ray Big Ray is offline
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according to the info I have the 1971 346 heads are 79.5 cc's and the 1972 and1973 are 81.95 cc's .I hope this helps you .
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Old 04-19-2002, 05:36 AM
DartGT66 DartGT66 is offline
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Those are blueprint specs; the reality is propably in the 90cc range.
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Old 04-19-2002, 02:05 PM
Craig Craig is offline
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As I recall, my 346s measured 90-92cc, and that was with extended reach plugs, and before the valve job, so the chamber was as small as it could be before decking.
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Old 04-19-2002, 07:55 PM
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thanks for the info guys.
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