T O P I C R E V I E W
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Jeff S
Member # 371
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posted
If not what are the differences?
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shade-
Member # 298
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posted
they are milled for the cobras, and obviously are for 1/2" headstuds but we had a good debate on that not too long ago so maybe we don't have to revisit that
something like 64cc for the lightnings, and 62cc for the cobras or thereabouts
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66 AC COBRA
Member # 904
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posted
i had a set of gt40 lightning heads, the combustion chambers were polished, but no material was removed, the chambers ended up being 67cc, so i would guess 66cc is stock
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