Hard Engine Knocking

[86SupraMan]

ok, so ive been wandering around for a little bit as a guest, and ive seen a thread with about the same problem as me, but i dont think it matches up, so here goes

I just bought a supra not to long ago, when i start the engine, it has a low knocking, which matches rpm speed. (i say this because as i rev up, it gets louder and faster, also sounds like a bit of grinding, but im not 100% sure about that) i figured it would be sticky lifters so i tried cleaning up my engine, which happened to be dirty as all hell, it worked for a little bit, it wasnt as loud as before so i figured i cleaned out a nice bit of it, but im still confused as to what it can be, i took it to a tech i know, and he told me it was a shot wrist pin, but frankly im not inclined to belive him as i doubt his credentials. any info would be greatly appreciated, thanks.

Eric B.
aka 86SupraMan