[KULTULZ]

Did different manifolds have different outlets that came down at different angles?

I'm looking at a used manifold that the seller SAYS would work on a '61 Merc., but the prefix on the casting # is "C6......", which, as I understand it, would be for a car from 1966, or thereabouts. It MAY work on my car, but the number is C6AE9430A so I can't know for sure. My car is a "survivor" original, but I'm not so anal about it that casting numbers have to be exact.

I'll look for one of those manuals KULTULZ mentioned.Oh, two more questions:

The seller says the the cylinder head mating surface of the manifold has been resurfaced, which is good. Does the cylinder head exhaust surfaces themselves have to be resurfaced flat?

Also, the there was no exhaust manifold gasket from the factory on my car. Would you put one on when replacing the manifold?

I would leave the C6 alone as it most likely will not fit (IMO).

The manual you speak of is very hard to find. With those manuals, you could pinpoint what would and would not work.

It is hard to determine how to advise you as the MPC was updated regularly and a replacing PN would be hard to determine without all the needed manuals.

There was no gasket used, it was metal to metal except for HP and medium/heavy truck. The manifold will warp way ahead of the head surface. Very unusual. Just make sure the replacement manifold is true and try to use new hardware torqued to factory specs. Under no circumstances use a fiber gasket as these will allow the manifold to move leading to cracking.



You might want to remove your manifold to compare with period ones on E-Bay.


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