A good buddy of mine has had this engine sitting on his bench for untold years (at least 30 I'm sure). It was in a truckload of Norton parts he picked up for $200... ah, the good old days... I went over to his place (he lives on the Oregon coast, which was beautiful today!) and handed him a small sum of money for the engine. The agreement is that once I get the original engine fixed he has first rights at buying this one back (plus whatever I have into it). Fair enough! So I had always assumed that it was a Combat but honestly had never looked at it very carefully until I got it home. I saw the back breather and well, it's probably a Combat, right? Now I don't think so. No C on the head. Intake manifold is 27mm (shouldn't it be bigger?). There's not much gap between the head and barrel. And the engine is a lot rougher now that I've gotten it into the light. Broken fin. It looks like someone has tried to take the barrel off (missing base nuts). And there is a clunk when you turn it over. Needless to say this one needs to come apart. I was hoping (perhaps naively) that I could literally pop this one in the bike and go riding. That is not going to happen. I need to take the blown motor apart and see how much of the top end is salvageable. Worse case is the barrel spigots are toast from the rod flailing around. Will the pistons be toast? Hopefully the head is ok. What I really need is an engine stand, does anyone have an extra one laying around?