5E5501 to 5E6000 are listed as Miscellaneous Engines, maybe a picture or some casting numbers will help.
5E prefix should be an early D8800 power unit diesel
5E5990 is a D6600 power unit
I had a brief look at it some years back when I picked up a Twenty from the same man. Is it a six cylinder with two heads, or is my memory playing tricks?
5E would be an early RD-8 engine, six cyl. D11000 model.
[attachment=70942]IMG_4214.JPG[/attachment] Here is the list for the 5E prefix out of my old NPR![]()


