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Zimmy,
Everything I can find refers to these as a standard replacement for the 427 which was 11.5 but something tells me that isn't right. They could be 10:1 or 10.5:1 but the real measure is what heads they were with, gaskets etc.. All the literature I see refers to them as "flat top" units.
What was the compression readings you got before you tore it down? It isn't rocket science but you can correlate the pressure with the C/R
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michael
A man that is young in years, may be old in hours, if he have lost no time. But that happeneth rarely. Generally, youth is like the first cogitations, not so wise as the second. For there is a youth in thoughts, as well as in ages... Sir Francis Bacon (1561-1626)
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