Ls1 engine question..
Hope this makes sense.
Thanks in advance.
What do you want to do?
just like any other motor...new bearings will make it like new...the pistons/rods/crank arent going to wear out.
I would change valvesprings/rockers/pushods/lifters while its apart..as well as the oil pump.
All the little stuff needs to be watched..injectors, fuel pump etc.
LS1s are just like any other motor.
As stated give it a leakdown test. Inspect test things like pumps injectors plugs wires all that.
Myself with a higher mileage LS1 car i'd more worry about rear then the motor.

