Soo after 240000 long miles headgasket busted. Ordered rebuilt upgraded long block from Promar precision engines. Project is going pretty good so far had a bit of trouble with the lower crankshaft pulleys. Currently just finished painting engine an engine compartment frame and misc. engine components under hood. Looking for input on what mods precautions procedures etc... I’m going back with quick change lower pulley and hub new harmonic balancer 8 lbs pulley egr delete. Also break-in procedures an initial start-up.