This is one of my personal project,, challenge,, bottom is 1980 iron sportster , rear head is late pan head,,external oiler,,personally I like outside oiler,, front head is 194o something knuckle ,,,, I am not a restorer,, Good friend of mine Tim from negotiable parts,CA hooked me up those heads along with stock tin valve cups and rare find Ron trock 3 11/16 shovel head big bore cyclinder,,and so on,,,,
those head are mated with knuckle head cylinders, modified cases to fit cylinders,,
other modifications? a lot,, haven't got a chance to focus on this thing,,, hopefully soon.I hope it runs..
I have another special project engine on collecting parts stage,,this one will blow your mind.. stay tuned..

These kinds of project keep me sane.