Question about the S2 cylinder head (1969)

[Mike_S (Mike Spoelker)]

There is currently an >>extremely<< detailed discussion as to the who/why/what all of these head stampings mean over on the XK bulletin board.

"C" head on 140 with no evidence of red paint

As noted, I have been researching Cylinder Heads for many years, and in particular the progression/development of the so called C-TYPE Head, and although I am now confident I can be conclusive as to their development/evolution over their June 1951 to January 1957 period of development/evolution and usage, their are indeed a couple of anomalies and loose-ends to be finalised. I do have a comprehensive paper half written, fully describing, picturing and explaining the whole C-type head story. A …