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Old 01-24-2006, 08:15 AM
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Donnie Donnie is offline
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Default 70 Big Block Chevy Head ???

im taking my original motor apart for a rebuild and ran in to something i need some help with.
my car was built the second week of Dec. 69 and one head is

L..12..8...3931063...with flat seat plugs
and the other is
L..2..9....3964290...with taper seat plugs

i know early cars could have either head but shouldnt both heads have flat seat plugs?

thanks Donnie
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