DISCONNECT TO WELD QUESTION

I do that job all the time on dodge/ford/chev never had a problem,never disconnected anything , but I do put the ground as close as I can to where I’m welding ,pro tip put a bolt in the good hole in the cyl.head hang the ground off that , also weld a washer on first then nut onto that ,good luck usually 2 or 3 nuts before you get it out . Patients is a virtue.