Go for it. I did this once on a 1914.
Interesting results - i threw it together and didn't calc CR. - it was about 6:1 and the plugs sooted up every 100 miles or less.
But when i had time I took it out, CR'd it, had the barrels machined accordingly and it was a bombproof rocket mote in the end. Made nearly the same numbers as my 2165 big ticket motor made by a "name" from Up North.
Take your time, stick to your principles of lo-buck and you can really be surprised with the results if you take the time to put it together properly.
'59 fully plastic bodied Wizard 2 seat roadster
Indian Scout 101ci
Originally Posted by mr slug:
"Best bike on the thread IMO, outright winner"
The Runaway Boy