Consider doing the top end and fixing the problem once and for all. The 103's have these cute little lash caps on top on the valves that will get tossed off in valve float. (at least thats the only way I can figure they come off) I've seen a few of these missing here and there accompanyed with a pretty good tick. While I'm sure it happens I've not replaced any 103 lifters so far.
Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.