Post #5 - Engine: Jugs

The Pan's cylinders - while already having been sleeved with something - were actually in pretty good shape. The std. bore walls had a bit of scuffing and a significant top-ring groove wear groove wasn't really there - so I thought a minor cleaning (honing = yes, boring = maybe) was required. My dad's collection of tools didn't host a setup for properly securing the cylinder if boring was required - so I found a place that could: Wagemon Brothers in Minneapolis. If they are trusted to build Tony Stewart's dirt late Model engines - they must be OK to check this cylinders out. So I dropped them off & waited to hear back,

& waited,
& waited,
& waited... but didn't hear back (I didn't actually wait, I worked on other stuff too...but still)

Eventually - I think a couple months had passed - so I dropped them a line. They claim that, because those cylinders were so small - they never got the attention they needed. Finally - they got to checking things out & found a 0.010" overbore would cure the scuffing & straighten as needed. They got to that real quick & I shelled out ~$100 for the whole deal - not too bad...

I didn't have a real good way to check for cylinder deck flatness, so I fixtured the units to a mill table with perpendicular cylinder alignment key and used an end mill to do a light pass. Turns out the decks were in really good shape as well.

I couldn't really tell if the cylinders were original 48's, but they did host both the oil feed & return passages through the base of the cylinder as compared to the later versions with combinations of cylinder bore oil returns & external feeds.