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Old 09-01-2010, 01:03 AM   #6
garmar
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Join Date: Aug 2010
Location: Mtn View, Missouri
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Re: Inline six parts interchange

Quote:
Originally Posted by raycow View Post
AFAIK, no GM inline engines had the intake and exhaust manifolds cast as one piece. Some 75-up engines had the intake cast in one piece with the head, but the exhaust manifold on those was still a separate casting. I do not think the exhaust manifolds from the two different types of heads will swap, but I haven't actually tried it to find out.

250 and 292 manifolds (intake or exhaust or both) will definitely swap if both engines have the same type of head.

Ray
Exactly right. I meant to type the head and intake was cast together not the intake and exhaust. Sorry about the mistypo.

And yeah, they're junk. My Dad had to replace it on an old 75 Chevy he used to have with the pre-75 head and intake that wasn't integrated. It cracked IIRC.
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