I have a 2000 civic ex.(2 questions)
what would yall do if yall were going turbo later on?

1) B18B
2) JDM B16A (92-95)

If you had an old(like 150000 mile LS engine, if you replaced
the pistons rods, would it almost be like a new engine??)

 

1
you can rebuild an engine to be *like* new

 

if you rebuilt the whole bottom end and redid the head or what not, then you would essentially have a brand new engine.