Thread: ls6 heads
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Old 11-02-2006, 02:13 AM
dwwchevellen dwwchevellen is offline
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Default ls6 heads
A freind of mine has a set of big block heads,cast numbers 3964291. are these ls6 454 heads? If so what application,he believes the valves are 2.25 and 1.88, closed chamber. if so what is the chamber cc and intake runner cc?
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