Don't think so Jools as there are fixed C versions as well as manual (usually with the AR hole not drilled and tapped, so a blank casting that end). Main obv diff is the screw-on pick-ups, square end housing for points and camring, larger screws to retain same, bigger cb end bearing 'N3048 vs E15' (in almost all cases), end cover with breather, no holes in base of body. V easy to confuse the bog standard later offering with screw-on HT pick-ups used by Triumph etc as Beezermacc said. And plenty of mixed and matched ones out there, with or without the correct id label on.
I think there may be some truth in the winding point raised by berger, but not sure. I also heard that sometimes if there was a break on the HT winding when doing it, some mags would have a join in there, but not if it was a C. Could just be bar-room myth though, plenty of them about
The windings done these days are the same, afaik, from most winders, for all versions of K1, KV and K2F and C versions. R versions, not sure, don't see a lot except the odd KVFR version with different armature material. Early ones of those, like K2Fs generally, had 15mm bearings at the drive end.
The KVF is valuable to a Vincent owner certainly! Clockwise rotation, so different slipring from on an A, 50° so different camring, sometimes platinum points, cyl numbers stamped on the body, etc.
Bit of a minefield really, and lots of pet theories around as to what is what. Quite hard to sort it all out sometimes and I never feel 100% certain on some of the ins and outs. The Lucas Parts Lists help, but aren't light reading!
