Manifolds and risers

Paul · Post by **Paul** » Sat Dec 18, 2010 3:12 pm

Around here the RWC manifolds worst enemy is "freezing". When properly winterized and cared for, these manifolds can last the life of the boat. When I bought my Trojan, both manifolds were cracked and needed to be replaced. When I installed the new engine I also installed new Osco manifolds and elbows. The guy who owned the boat before me repaired the cracked manifolds with Devcon epoxy but that didn't last very long.

fourreins · Post by **fourreins** » Sat Dec 18, 2010 3:52 pm

Any thoughts on Osco elbows and risers vs. Crusader parts for the Crusader 454?

Paul · Post by **Paul** » Sat Dec 18, 2010 4:18 pm

Osco manifolds are good castings and mounting surfaces are machined correctly. They may save you money over OEM castings. This is why I chose them over MerCruiser parts.

prowlersfish · Post by **prowlersfish** » Sat Dec 18, 2010 5:45 pm

OEM manifolds are better then the Osco , heaver castings . Not that there is anything wrong with Osco , Barr marine also makes a very good replacement manifold a little better then Osco IMO . Ignoring price My choice would be OEM then Barr then Osco . How ever if Barr or Osco fit the budget better I would not think twice about using ether one.