The engine in the 53 was only made that year. I found that out from Patrick's.
I would pay to have the engine taken a part (or do it yourself) then check the cylinders and crank for wear and if they have been ground or bored to the max before making the decision. I would also have hardened seats installed.
I was going to rebuild my 53 216 until I found out it was worn out. The cylinders had been bored .080 and the crank shaft had been ground to the max. Taking it a part by the machine shop and mic'ed cost around $100.
Sad. My engine number matched the plate on the cab.
I hope this helps
