OMC 2.3 to 2.5

[kem60]

I need advice on converting a 2.3 OMC Chriscraft to possibly a 2.5 OMC motor . This is my brother-in-law's boat and I am trying to locate any motor mounts or kits that I can possibly buy. From what I have found the drives are compatible, it's just mounting the motor that is the problem. Thanks!

[CDK]

Are you sure there is a problem?
As far as I know OMC during their existence has never made one single engine but bought them from GM, just like Mercruiser does. The difference between 2,3 and 2,5 is only internal, like a larger bore and/or different cranckshaft. The block has threaded holes for several different engine mounts and fits both Merc, OMC any even Yamaha mounting styles.

[kem60]

Thanks for your time, I'll have to look into it a little closer myself, thanks!