Thread: 239 Y Block Exhaust Manifold Question
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Old 04-11-2019, 03:39 PM   #5
dmsfrr
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Default Re: 239 Y Block Exhaust Manifold Question
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Originally Posted by dmsfrr View Post
...The '57+ exh manifolds are a bit larger in diameter but the bolt pattern onto the heads is the same. ...
Except for the Lincoln / truck style y-block engines, which have a zig-zag bolt pattern.
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