In regards to the 45"er, here in NYS, you can get those registered, by taking those numbers to the DMV, with a pencil tracing, and if it has not been registered in quite some time, they'll issue you a registation.
That 20" pulley on that engine indicates it may have been used for an irrigation pump, sawmill, or for some other remote power source.
HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Palmer's Performance Products
Complete H-D Machine Shop
Case Boring, Cylinder boring
Complete Cylinder Head Shop
Serdi and Goodson Cylinder Head Tooling
Super-Flow Flow Bench
Goodson HD Tooling Manufacturer
From Flatheads, to 2015 models.
"OVER 30 YEARS OF BUILDING HARLEY POWER"