I have also considered that possibility, but I was aiming way too high. If a well tuned RD400 can make say 72hp, then surely a triple could make 106 or maybe more in a drag race motor.
First issue might be moving the cylinder studs and the second would be crankcase moth mot being close to matching RD transfer ports and of course the perennial issue of can I squeeze an RD cylinder between the two outer pots.
What would probably be easier to achieve is to fit reed boxes and bore it to 63mm. I am assured by those that know that 63 or 64mm is the absolute maximum bore size but with a little more boring and some welding and plating, something slightly larger (say 66.5mm) might be possible.
Ian Reed in teh UK has done some interesting things with his 380 triple and of course there was a 500cc water cooled Barton version of the 380, so anything is possible.
First issue might be moving the cylinder studs and the second would be crankcase moth mot being close to matching RD transfer ports and of course the perennial issue of can I squeeze an RD cylinder between the two outer pots.
What would probably be easier to achieve is to fit reed boxes and bore it to 63mm. I am assured by those that know that 63 or 64mm is the absolute maximum bore size but with a little more boring and some welding and plating, something slightly larger (say 66.5mm) might be possible.
Ian Reed in teh UK has done some interesting things with his 380 triple and of course there was a 500cc water cooled Barton version of the 380, so anything is possible.