350 Swap can it happen ?

16Pilot

Petty Officer 1st Class
Joined
Mar 18, 2004
Messages
205
since a 4.3l GM is supposed to be a 350 small block minus two cyl. how hard would it be to drop it in a 1990 17.5 Stratos that currently has a 4.3l ?(The only thing I know for sure is that the bell housing is exactly the same.
 

16Pilot

Petty Officer 1st Class
Joined
Mar 18, 2004
Messages
205
Re: 350 Swap can it happen ?

Oh yeah and do I need to change the outdrive ? I am running an OMC Cobra
 

f_inscreenname

Commander
Joined
Aug 23, 2001
Messages
2,591
Re: 350 Swap can it happen ?

If you have the bank for the different parts that aren't interchangeable then anything is possible. By the time you buy exhaust manifolds, coupler (maybe flywheel), figure out a cooling system, all the marine internals and externals for the 350 and a outdrive. You may want to rethink what you want to do.
 

anesthes

Petty Officer 2nd Class
Joined
May 5, 2003
Messages
186
Re: 350 Swap can it happen ?

Ugg.<br /><br />I did a 4cyl to v8 swap. Making motor mounts were tricky. Otherwise its all straight forward.<br /><br />Try to find a complete setup like I did for the swap. <br /><br />I paid $1000 for my 260hp alpha one setup. From spark arrestor, to prop.<br /><br />So far i've replaced: oil, gear lube, gimbal bearing, top bearing in outdrive, gaskets, coil.<br /><br />The guy even threw in gauges, and a power steering setup (my boat had manual). <br /><br />-- Joe
 
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