Blueabyss

I dont think aluminum will be a problem if you are not in salt. As far as dry joint goes, the merc dry joint setup does not have the u hose that goes from the manifold to riser. In my opinion its the best manifold setup merc has made other than the 496 manifolds. I got mine from ebasicpower.com

http://bpi.ebasicpower.com/search2/s...kit+mercruiser

There are a couple different versions depending on the angle of your riser. Some even need riser spacers to lift the height of the elbow.
Chris

mmr1229

What I want to do is use the GLM aluminum manifolds with stainless riser pipes to the transom sounds like that will be the best. Any thoughts??

airjunky

iTrader: (2)

Lots of weight savings with that combo ,suggest using the silver conductive permatex anti sieze on the riser bolts going into the manifolds. Long runner manis and some careful idle water dump control and now your a cam swap away from a noticable power bump while keeping it reliable

mmr1229

"Long runner manis and some careful idle water dump control "

You lost me with careful idle water dump can you explain?

mmr1229

see link below CP Performance has a decent set up, cast iron manifolds will this work without any major issues? my engines are all stock

http://www.cpperformance.com/p-22473...ss-risers.aspx