3837004 Is a 55-57 235cid. It has the 848 head, which is good to have.
'Bolter
Is the 55-57 a drop in engine? It looks like it has a regular water pump on it but the radiator doesn't look like it has been moved forward to make it fit and the firewall is intact and not cut. Also, did the 55-57 have hydraulic lifters or solid? I haven't started it not knowing what it was because I didn't know if I had to adjust the valves or not.
