Have found today a set of front and rear K cylinders marked 16581-55R, and a set of rods marked 24296-55R and 24292-55R.
I'm guessing these are KR, and if that's indeed correct, for what years would they have been current?
There are a few groupings of flywheels with 23932-56R. One set seeming reasonable in appearance, and others polished and lightened. How lightened and polished can flywheels get before they are no longer useable - is there a guideline for this?
There was also a set of flywheels with MO CASCO 40, 32, and 5 on them - no other markings except MC in a shield. They appear to be the same size as other K flywheels - maybe 45", but not WR judging by the pictures on Eric's BOS site. Any particular way I can take measurements to help identify these?
There were also some cams, a 4F, 4K, 1K, and 3J - out of these, can anyone tell me what the F and J cams are from - sportster?
There were also two cylinders, unmarked, with very similar characteristics to the -55R ones - similar relieving, female exhaust manifold, etc that had been modified in an interesting way. They seem to have been cut in in two across the bore above the base flange and then welded back together somewhat shorter than before. There is also a set of rods that are very similar in style to the -55R rods, but are shorter, and unmarked. I think these might be matched with these shorter cylinders.
Could anyone hazard a guess as to what a previous owner might have been trying to achieve with this set-up? A de-stroked K? An earlier 45" with a later top end? I can take (imprecise) measurements if it would help.
Many thanks again,