I decided to change all 6 pistons, main bearings, conrod bearings, and new headgaskets and bolts. I also decided to do a cooling system overhaul as that is a very big weak point on these engines. I went all aluminum even for the thermostat housing. New timing stuff like chains, tensioners, guides were also replaced *Side note on the timing on these, the timing chain tensioner arm is known for forming a divot exactly at the point where the tensioner pushes the arm. New ones have steel buttons.