I am wanting to build an Atlas powered late 60s style long bike over the next couple of 5 to 10 years. I will be building the frame myself and piecing together what I want it to be. I have built several panheads and ironheads in the past piecing projects together. But for what will most likely be my retirement bike I want to do something a little different and so am thinking 750 Norton and the Atlas has caught my eye.
My first question is this: are Atlas , P11, G15 and N15 essentially designations of what is basically the same engine? From what I can tell about parts fitment from various websites it seems to be the case. If that is incorrect could some one please school me on where my error is?
Second question is this: How much interchangeability is there of these motors from 63-68? There is a good chance I will be piecing together a motor(I kind of enjoy doing that) and if 63-68, Atlas, P11, G15 and N15 are all interchangeable that project becomes much easier but if not I will need to know what goes with what.
I thank you all for any help you might lend.
My first question is this: are Atlas , P11, G15 and N15 essentially designations of what is basically the same engine? From what I can tell about parts fitment from various websites it seems to be the case. If that is incorrect could some one please school me on where my error is?
Second question is this: How much interchangeability is there of these motors from 63-68? There is a good chance I will be piecing together a motor(I kind of enjoy doing that) and if 63-68, Atlas, P11, G15 and N15 are all interchangeable that project becomes much easier but if not I will need to know what goes with what.
I thank you all for any help you might lend.