Most likely, 1954 car/truck 235.
Or, maybe a 1955 1st series truck engine.
Or, a little possibility you have a 1954/55st 261 engine.
What is the Engine serial number?
What are the head/block casting codes?
What are the head/block date casting codes?
Here are locations of codes. Find the codes and post them here.
That should tell you which car or truck 235/261 head and block you have.
