OMC Exhaust manifolds

joemagjr

Cadet
Joined
Jun 10, 2003
Messages
9
I got a 1988 4.3 need exhaust manifolds. Anyone know of after market manufactor...?
 

gparadiso

Cadet
Joined
May 27, 2003
Messages
17
Re: OMC Exhaust manifolds

Osco makes aftermarket manifolds and so does Barr. barr are better...check ebay, can find new ones at cheap price and always replace with new not used especially if salt water cooled
 

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
13,048
Re: OMC Exhaust manifolds

If you want to use the OE OMC one piece manifold/riser, only they made them. If you want to go aftermarket, you have to use Volvo style center riser manifolds, and you'd have to find out how to connect the risers to the Y-pipe using rubber exhaust hose. I just got a set of OE manifolds for my 88 4.3, $377 a side, but at least I know they fit and I don't have to fiddle around with it to get it to all line up!!
 
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