Common issue with these motors once they get a lot of miles on them. If you are going to put a used motor into it, especially if the truck is a 4x4, I recommend replacing the rod bearings and at least inspecting the mains and always replace the oil pump. Just good insurance so that you don't end up doing the work again.
94 S10 355 SBC 11:1 compression, not sure on roller cam but sure is aggressive, Brodix Track 1 heads w/roller rockers, MSD everything, 700R4 tranny with B&M ratcheting shifter, 28-10.5-15 M/T Sportsman Pros on rear / skinnies on front all on Weld 786 rims. Currently converting to 8.8" Explorer 3L73 rear end from a 97 Mountaineer.
1970 Camaro Z28 with 409 CI, Tunnel ram with dual quad Holly 600's, Comp- Cams 274 solid roller cam, AFR 205 heads w/roller rockers, Forged crank, H beam rods and pistons, 4L80E transmission w/3400 stall converter, 12 bolt rear end with 3.73 posi rear end
1979 Mercedes Benz 450SL purely stock and original
1974 Maverick with 347 stroker 4 link back half, narrowed 9", 4.11 gears, Hoosier slicks (still have not run it for time)
1964 Sunbeam "under construction but been on hold too long"