Exhaust manifolds

cuda620

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Hi all. Happy Thanksgiving! Question; ive read that angle milling big block hi po exhaust manifolds will make them fit a Big blockA body swap? If so, does anyone know for sure how much to mill off and which bolts/ studs to mount them? After milling I figured the holes would be out of alignment. I’m using edelbrock rpm heads and a B engine. Which obviously has the lower deck height. Thanks in advance for any help! Mark
 

4mulas

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I don’t think this is possible. The outlets leg on the left side is completely different, don’t think any amount of milling will make it workable…

a body

C7F210DA-40F0-49B0-8ACC-812616232D19.jpeg

the top manifold is drivers side in both pictures


b body
66360389-6006-4C67-A999-577D2F665286.jpeg
 

cuda620

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I read from someone named Kimmer that it would. I’m not gonna spend the money that’s wanted for oem’s. Thanks, Mark
 

swedefish

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I shorted the steering shaft tube. Can’t remember with how much, but it did work. Mine is a 4-speed I should ad, considering the disagree note
 
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oldkimmer

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Mark, I have milled the C body drivers side 1/16 on the angle. If u go anymore the flange will hit the block. The B body will fit without milling but u have to shorten the steering column housing to the firewall. U could have the b body milled if u wanted. Kim
 

cuda620

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Thanks Kim. What did u do for bolts/studs? I assume that the head and manifold holes don’t line up when ur done milling?
 
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