Need help identifying this motor
its a late model shovel engine and looks to be a Shovel frame from the oil tank picture, two decades and two engine series away from what the paper you have states it is.
its a late model shovel engine and looks to be a Shovel frame from the oil tank picture, two decades and two engine series away from what the paper you have states it is.
Funky numbers and the right cop is instant go to jail with all kinda legal problems raining on you and say by by to the bike, it's gone.
that was my reference that looks like a more modern vin number stamped shovel frame, 1969/70 era with a cone shovel and electric starter
Once you had a Harley Stolen...you May think differently!!!! BTDT
Edit; Luckily for you, it is Not a VIN... that is Federal everywhere... except maybe Mexico...or China... If being used as a VIN.... welp...Hang on to yer ***
BTW, You Asked....
Last edited by Racepres; Nov 12, 2023 at 07:07 PM.
The Best of Harley-Davidson for Lifelong Riders
As stated above its a Knucklehead serial number (SN) on a Shovelhead case, or at least on a Shovelhead-style case.
SNs for 1940 Knuckles began at 1000 and I have a factory photo of 1000 on a 1940 Model TA (Knuckle three-wheeler) but apparently it was a prototype for the US Army.
Other 1940 Knuckles were stamped E or EL but its unclear if 1940 E-series SNs began at 1000 or not due to number 1000 being used for the above-mentioned TA.
If no 1940 E-series was stamped 1000 then their SNs would have started at 1001. And we know they went as high as 5054 because there is a factory photo of it. Did SNs for 1940 Knuckles go beyond 5054? Maybe, but even if they did it wouldnt have been by much. Anyway 4945 is within the known range but was 4945 originally assigned to an engine stamped EL? I do not know. Its possible but its also possible 4945 was originally assigned to an engine stamped E because SNs for the 1940 E-series were mixed in together due to their engines being in the same family. One way to know for certain would be to have original documentation but you dont have that and even if you did the SN isnt on a Knucklehead engine anymore.
On the rear head 07 66 is a casting number used for 196669 and into the 1970s. On the front head you may find casting number 05 66. On top of both heads on the R-H side you may find a date code indicating the month and year each head was cast.
I cant tell if the cases are H-D or aftermarket. If H-D and if 197074 you may find a crankcase production number under each case near the outer edges and somewhat toward the front. For example 170-1234. Photos?
In your photo below are there markings on top of the cases at the rear? Or nothing?

Also notice the arrow I placed near the front of the seat. Can you remove the seat and post a photo of that area of the frame please. Photos of both sides of the steering head may also help with frame ID.
Starter cover is 1970 or later because it is recessed to accommodate an exhaust pipe.
Under the trans case you may find a casting number. Maybe 34703 65? Or something different?
Stamped on the front of the trans case on the R-H side just below where the lid attaches you may find an additional original component identifying number, aka security code, aka anti-theft number. For example F1234. Photo?
Eric














