Complete running UH motor. Not rebuilt, I had heads off & the cylinders are smooth, honing cross hash marks look fresh, appears motor has not had a lot of miles, at least top end. It's a 80 inch motor with .040 over pistons. It has relieved cylinders, looks factory. Has a nice freshly rebuilt M51 Linkert carb. It was rebuilt to M51L (correct carb for UH) specs with M51L size venturi. I ran motor in my test stand & it runs good with no unusual noise, smoke, oil leaks etc. The scavenge pump has the optional rear chain oiler cover & the boss for the fitting is broken. The adjuster screw has been adjusted for no oil flow so there is no oil leak, just run it as is or if you need a rear chain oiler the cover can be easily replaced.