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05-24-2012, 02:40 PM
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#5 |
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Member
Join Date: Jan 2003
Location: Las Vegas
Posts: 384
Likes: 101
Liked 419 Times in 85 Posts
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Re: 273 CDP Block Question
The pre 1966 273 heads have 5/16 bolt holes for the intake. After 1966 they went to 3/8 like all other small block mopars. That is why you had to oblong the holes in the early manifold you were trying to use.
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