For my 55.1 3600, I had one leaking cylinder. Since I'm planning a complete replacement at some point, I decided to rebuild the cylinder. I had a devil of a time getting a kit.
"What year is it? Half ton or 3/4? What engine? We don't show anything for that year in our computer."
I finally found a guy at Napa, who was willing to look up ODs & bores to find a kit that worked. So, if you choose to kit it, just order it online. It's faster than sitting at the counter.
