Appreciate the advice....
I'm back to work on the '40 (Dad passed away in August and other builds and my son's activities kept me busy)....
I'm going to pull the motor- hard to keep the plugs clean with stock ignition and poor cylinders (significant ridges).
1) Assume radiator should come out and tranny stays in.
Does fan need to be removed as well? (59 motor- stock 40 deluxe sheetmetal)
2) How far forward is typical to clear input shaft in clutch etc?
2) Assume a stumpfy engine fixture will support the block on stand with no further support?
3) Any idea if these are mushroom valves? Any thoughts on design- typical Ford valves/springs?
4) These appear to be an adjustable lifter with one of them backed off (3rd photo). What keeps these locked? Any recommendations for a replacement set? Ol' Ron seems to indicate they are all bad

from a few posts I've read. Suspect these have been in service since the 50's.
thanks....Lane