anyone got info about engine swap

[baker]

hey i'm about to swap engines merc 350 to chevy 350 (I know; cam, brass,all marine elec and components) I just need to know any tricks ect. I've swapped 20 car/truck engines my buddies helping he's a auto/heavy duty mechanic. We don't know about boats Can some one give me some help?
allignment, any look out fors ect. ect. It's may 30 and it's 33deg celsius and I need my boat in the water asap my moter blew and it's not worth fixing

PLEASE HELP from Canada

 

[Reel Poor]

Re: anyone got info about engine swap

You will have to remove the drive to replace the engine. This link should cover the information you will need to remove the drive, align the engine, and reinstall the drive.

http://www.boatfix.com/merc/Servmanl/6/6covr3.pdf

 

[RCSConstruction]

Re: anyone got info about engine swap

I just did the same thing except on a Volvo Penta.
Things to look out for are:
If your motor has a windage tray the newly rebuilt one may not have the studs which will require you to re-torque the mains. (using your old windage tray/main bolts)
Make sure the block/heads are the same year as your meri. If you have a 1 piece rear main, make sure you get another. Don't go cheaper by getting a 2 piece. It was recently brought to my attention that you will have flywheel/coupler/intake issues if you exchange from one to the other.
If you can afford some vortec heads, which will require you to buy a new intake manifold, do it. Better design, better combustion, better performance.
My .02