I took my beloved truck for a B-double-E-double-R-U-N, on the way home it sounded kinda funny, like someone threw a bunch of ball bearings in the crankcase....I got home, killed it, and let it cool down. I checked all the fluids, everything was ok, and then I cranked it up again. It started up right away like all was well, but as soon as I hit the gas it sounded like holy hell...clack clack like I was doing serious harm to the innards of the motor...
it's an original 350, 120k miles, no mods...sounds d-e-d to me...
this is my grandpa's truck...I don't want it to die on my watch....