A while back I bought an AC 416S (non-running) for basically a parts tractor. Engine had no carb on it. But the block was painted in the gray that to me signals a remanufactured block. I found a carb for it and fired it off. Runs real sweet, great sounding engine. I pulled it out as I have the rest of the tractor sold (guy just wants the rear end). I'll keep the wheel and tires off it too.
Anyway, this is a wide base block and I was wondering if it would be easy to change the oil pan to the smaller ones. I have 2 options of what it will go in, one being my Ford LGT 165 or another mystery tractor that I hope to drag home soon.
Today, I got it up on the table to pull the pan and see what it looked like under the pan. I got lucky, as it does not have the slots going out to the width of it. So any oil pan will fit it. WooHoo!!!
Even the holes for a smaller pan are threaded.
But, the balance gears have some slop in the bearings, so I need to address that before it gets installed. Either I get the new bearings for them or just a gasket set and remove them. I have some time to think about that decision.
But, I'm a happy camper at the moment. Bottom side of the cylinder looks real good, piston looks snug in there. It has real good compression, I can't roll it over by hand.
I guess this makes it an AQS engine.