- Nov 12, 2006
- 5,334
- Boat Info
- 1999 Sea Ray 330DA
Twin 7.4 MPI (310 propshaft HP) V-drives
- Engines
- Twin Mercury Marine marinized 7.4L L-29 V8s
Cast iron block w 4-bolt mains
What Mike said. Degradation does not seem to be linear.
cost of replacing risers - manifolds
- Thread starter charlieft
- Start date
Nehalennia
Well-Known Member
- Aug 22, 2007
- 10,006
- Boat Info
- 2001 310DA twin 350 MAGs, Westerbeke 4.5KW
- Engines
- Twin 350 MAG V-drives
I've read here that OSCO manifolds are "suspect" of their quality. I have seen them at the boat show and they tout being made in America still and their quality is high. Anyone had a bad experience with them?
Coastal Manifold
New Member
If your running your boat in salt water. Dont waist your money on cast iron . Go with stainless steel one piece exhaust . It can increase hp while saving fuel. I have the manifolds you need . The cost is a little more but in the long run you wont have to worrie about leaking manifolds that can damage your motor and leave you stranded.Call me i can make you a good deal on 2 sets 541-297-8050
