Mercruiser 4.3L V6 Stainless Steel Exhaust Risers
Paul,
Unfortunately there aren’t any truly cost effective Marine Exhaust System options available that allow for a Stainless Riser on the AL manifold. Within their lineup of Mercruiser Parts they did use a cast stainless riser years ago but had a ton of issues with it (read article below) and therefore ultimately discontinued it. On the other hand there are AL manifold/stainless riser systems available for V8’s but nothing for V6’s. In all honesty the Fresh Water Cooled engine along with the coated AL exhaust manifold setup with anodic protection will probably be the best option overall with regards to corrosion protection AND weight savings.
Link to…………….. Tech Article on Stainless Riser
Regards
Performance Product Technologies/IShopBoating
8002 West 6th Street
Stillwater, OK 74074
(405) 533-3812
Fax (775) 257-1769
[email protected]
www.perfprotech.com
I have recently emailed you and have decided on the use of the #5399-6 Fresh Water Cooling set up on my two 4.3 Vortec motors, I am going to be changing my manifoolds at the same time, I was considering the use of aluminum manifolds with stainless steel risers, since the risers are still going to have the raw salt water running through them and I am trying to cut down the weight a little, is this a wise choice? I have tried several different blogs and websites and havent been able to come up with a clear answer, any help you could give me on this would be appreciated. Paul To respond to this customer reply to this email.
This mail is sent via more information form on Performance Product Technologies https://www.perfprotech.com/mercruiser-gm-43l-v6-full-systems/category/1579