413 marine industrial (E) engine, to, not so industrail......

The ootb Stealth Aluminum Heads from 440 source will bolt on just fine.... but they really need no less than 9.5:1 Compression Ratio even with 87 octane regular fuel, just to heat up whatsoever.
Be sure to Check Valve to Bore interference on the 413's small bore, you can put reliefs in the tops of the cylinders if req'd.... just use any Head Gasket as a template... you will "see" what I mean when you put a Head gasket on the Block.
Marine Cams are long "seat to seat" duration with low lift for a very broad, flat and even torque across the widest possible range.... choose wisely !