Who Besides AC Specialties Grinds Tappet Bodies?

We need 8 new ones (p/n 21608) or 8 re-ground, and those little jewels are
$80 a pop new. The engine is an A-65 Continental.

Such a wonderful little engine. Why doesn't anybody tool up and make these
great little powerplants?

Interesting thing about the tappets is that their faces are mushrooms with a
convex radius, to make them turn inside their bearing shafts as the cam
actuates them. The cam lobe, which articulates with the tappet, has a
special slope grind on it too. In the other end of the tappet are the
zero-lash hydraulic units, then the pushrod sockets, then the pushrods, then
the rocker arms, and then the valves.

If the tappets fall into the wrong hands they'll get reground flat -- which
is what happened to a member of our chapter--- and then you have 8 trashed
tappets and about $600 down the tube.

Thanks in advance.