Well, it's been awhile since I've been on the forum and it seems the Oliver bug keeps biting me.  A little while ago, I bought the neighbor's 66RC and a few accessories with it and then, a 440 followed me home for my son.  While my dad and I were getting the 66's engine unstuck, we discovered the cylinders were pitted pretty bad.  Once, we got her running, it seems the rings are frozen and she smokes just a little bit...  The block has been welded and we knew that when we bought it.  

So, dad found a super 55 with an extra S55 engine with it.  The 55 seems to run ok so, we're going to see if the extra engine will run and if it does, we figured it might be an easy fit for the 66.  So far we're pretty sure it will be an easy swap for the 66.  Has anyone else done this?

I appreciate your thoughts.