I bought a 1950 3100 1/2 ton last March and it came with a 235 that was manufactured in 1962. The engine had a few bent push rods but other than that the pistons and cylinders looked clean. However, I was after a 261 and ended up getting a 1957 261 several months later and have only now been able to break it down. I knew it was .080 over but had only been used minimally then removed and stored. Unfortuantely in those years in storage it developed some pitting in 3 cylinders.
The engine is currently in the machine shop to see if the pitting can be removed by boring out to 0.100! and Egge does sell a pistons upto this size if I do chose to go this route. The machine shop also they stated they could sleeve is necessary but that is a significant step up in cost. My original thoughts were to go with the 261 and risk the 0.100 over but keep the 235 and eventually get it up and running but the idea of putting a bunch of money and time into the 261 and having it perhaps short lived due to the large overbore and/or sleeving is concerning. Thoughts?
Thanks
