440 stuck wirst pins and rods

Was able to break them loose by soaking in chem dip for 5mins then spraying them with pb blaster inside piston between rod and side of pistons and a torch and hammer.Then knock wirst pins on side of pistons with hammer back and fourth with pb blaster.Then using a torque heat up wirst pins more so they come loose quicker.Came right loose in a few mins or so.alot black carbon junk came out and some corrison on wirst pins.