Quote:
Originally Posted by hurryinhoosier62
6X-8s would be my choice. With 101cc chambers, you should have an 87 octane friendly
engine.
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The 6X-8 heads on my GV's 455 was 98 cc before I milled 'em; you'll get some variance.
I believe I calculated the compression at 9.3 : 1
However the difference between the old 7.6 : 1 200 horse 455 (with less than 25K orig miles) is night & day
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Two 1975 455 Grandvilles &
'79 455 Trans Am
‘69 Camaro SS 396/375 (owned since ‘88)
‘22 Toyota Sequoia V8
‘23 Lexus LS500 awd
‘95 Ford F-super duty 4wd 7.3 p-stroke
& countless Jeeps & off road vehicles.
