OK so I bought another CSVT with a bad motor. I got the motor out and semi disassembled when I found the problem. It spun a rod bearin. It also blued 3 of the crankshaft counterweights

Where the crank was originally drilled for balancing the holes have burnt marks on them from heat. This sucker got really hot on the flywheel end of the motor. Now my question is....Is this normal for a spun bearing on these motors? Is it worth rebuilding or should I get another bottom end? The motor had 98K on it and also had a loose timing chain on one bank