I am looking for two 4" aluminum exhaust tube elbows for my 1976 233 Mercruiser I.O. Engine is 351 Ford. I found out the hard way that these are different than for 302. Engine Ser. is 4493387 Outdrive is 4516320. This style is no longer availible from Merc. I have been to Rancho Marine Boat Recycling but all they had was for 302. I do not have a part # is there anyone who could tell me what that # would be? Does anyone know of other boat salvage outfits that I could try, searching the net I have not found much, out there somewhere is a junk boat in someones yard that has been run in fresh water with some perfectly fine tubes bolted to the inside of the transom but how do you find it? I will pay top dollar for a set without pitting and corrosion. Kevin McCoy 360 376-5619
