[mr48chev]

I don't think many things changed on a 235 between 55 and 62. The 62 still uses the same Fram C4 oil filter cartridge that all 235s used in the can mounted to the manifold.
Most of the later ones did have hydraulic lifters but I don't know of any big changes.
One thing I would do on any of those before I put it in is check the cam gear and make sure it has a metal cam gear rather than a fiber gear. The fiber gears tend to give out at inopportune times when they get old. They run slightly quieter but you need a good ear to tell. Mine died on me the day I was headed to work to pack my tools up and move to a new job with Firestone. The gent I was working for helped me load my tools boxes in his truck and he drove me to my new job and helped me unload. He knew it was too good of a deal for me to turn down. My weekly income pretty well doubled.