Me too!!...Top end clatter / lifter tick?

[72warbonnet]

Top end clatter / lifter tick? <--- referenced posting is here.

I am having the exact same problem with my 13k miles '95 (stock) as described in the thread above. It sounds exactly the same as the video posted in that thread. (Ticking noise from vicinity of valve train over cylinder #2).

The only difference is... mine is not going away on its own.

I have tried:
** Added MMO to oil ... ran... changed oil.
** Run engine with accessory belt removed. (noise stayed same).
** Took to the "best" LT5 mechanic locally... baffled him. (Not surprisingly...'nuff said.)

I am trying next:
** putting in 0-20W synthetic with a little MMO added... will run for about 15 minutes low RPM... then put in new 5-30W oil (using AMSOIL, presently.)
(The thought behind this being "unsticking"/"pumping up" lifter.)

After that...I don't know what to do next except yank engine and change lifters.

Any advice??

Thanks!
Bill