I know a decent amount about building boats as I just put almost $10K into my boat this winter.
I went from a 454 to a 496 stroker, and it made a nice difference.
I don’t see why it won’t hold together also because I used quality parts.
But, boat motors do take more of a pounding than car motors. So that needs to be considered when selecting a cam (how high you want to rev to), and choosing your parts.
Also need to consider things such as prop pitch will need to be different when making more power, possibly need a new ignition becuase the stock distributers only usually redline at 5150 RPM, possible need for trim tabs and/or steering upgrades to keep the boat straight and not chine walking, etc. Just like all the extras you need to do when building a fast car, and you know chuck…