Greetings
I made the measurements of the valves in the heads with the pachymeter, and I obtained:
Valve depth: Lin - 2.8mm (bad), Lex - 1.8mm; Rin 1.8mm, Rex 2.35mm;
Stems: Lin - 10.95mm, Lex - 10.95mm; Rin 10,95mm, Rex - 10,95mm;
Guides: Lin - 11.15mm, Lex - 11.15mm; Rin 11,15mm, Rex - 11.20mm.
Please state what is relevant to these measures.
Note that the measurements were made without springs, however I was careful to make the seating of the valves with whiteboard pen.
Cheers.
VP