Ideas on what's causing my click/tick/rattle noise?

Wow! I spent the day in the shop working on this engine, and now the thread needs a ton of updating. I may have to break this into a couple of posts to keep things coherent.

As info, the question of hydraulic/solid cam has come up often. It is indeed an 82 block with an 82 hydraulic head. I didn't want a juice cam so I swapped in a full solid valve train from a 78 Volare with rocker arm and bolts, rockers, new lifters, and I think the original pushrods. The cam is a solid cam that was reground, it does NOT have the groove on the rear journal.



I will be checking the rings and grooves. These are new pistons and rings so only the problematic 700 miles on them.



Yes, I'm aware of the forged/cast crank business. I will double check this, but I'm pretty sure this is the first time this engine had been cracked open since it left Detroit.
Right, but you replaced the bearings, correct? With the correct replacements? That's what I was getting at.