Originally Posted by Lornce
That makes good sense and you've had the good fortune to find a guy willing to do the machining for a very reasonable sum. Hard to beat that.
I went the other route and turned a few sets of Nikasil barrels (800 and 1000cc) to suit /5 blocks. I built a fairly simple lathe fixture with facility to securely attach the cylinder using the two cylinder to head studs. Worked well and helped me achieve one of the critical steps in modernising an old R75/5.
And the big cc cranks and cams fit? Gee, I may rework my /5 block...