Mercruiser intake manifold exchange

Coork Johnson

Seaman Apprentice
Joined
Feb 20, 2001
Messages
33
Will an exhaust manifold for 1989 OMC 3.0 L exchange with a Mercruiser 3.0 manifold? Both use Chevy engines so I would expect them to be close. I have been wrong before and I am sure that you guys will get me straight quick. If interchange would require minor modifications for attachment to elbow I could handle it. I can get a Mercruiser manifold in trade for a lower unit housing from my old merc outboard that locked up.
 

johnkc

Petty Officer 1st Class
Joined
Dec 12, 2001
Messages
388
Re: Mercruiser intake manifold exchange

coork , how dare you want to cross breed your merc! any way it won't work, thank god!but i do have a good used one that i would sell ya cheap enough. email me if interested,jonboatman1@hotmail.com
 

Coork Johnson

Seaman Apprentice
Joined
Feb 20, 2001
Messages
33
Re: Mercruiser intake manifold exchange

I need a OMC manifold. I can get a Mercruiser manifold in trade. Just for grins, I have not looked at a Mercrusier manifold, why will it not work if the block is the same? Is it because of mating on outlet riser?
 

johnkc

Petty Officer 1st Class
Joined
Dec 12, 2001
Messages
388
Re: Mercruiser intake manifold exchange

OH!! well then , yes the ex.elbow just isn't close enough to line up with the ex. pipe . sorry.
 

Coork Johnson

Seaman Apprentice
Joined
Feb 20, 2001
Messages
33
Re: Mercruiser intake manifold exchange

Another question, (my husband is one cheap *&#@*!)but he brought this toy for me and maintains it to the best of his ability, and has 2 count'em 2 daughters in nursing school. Can outlet be matched up with flex hose ?
 

johnkc

Petty Officer 1st Class
Joined
Dec 12, 2001
Messages
388
Re: Mercruiser intake manifold exchange

sorry ,probably not ,the omc carb won't fit the merc man. and the omc throttle cable won't fit the merc carb if the carb comes with the merc man. have you priced osco motors for a replacement man. they are out of souderton pa.they are a mfgr. of after mkt. ex. manifolds for the marine industry .they usually have ads.in boat mags. or you might find them online,but i don't have an adress for them.
 
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