Back to stainless hardware...it's the devil!!! I had ARP stainless engine mount bolts for my 57 Pontiac. Got the engine in, threw the bolts through the mounts and spun the nuts on finger tight. Had to lift the engine out to change the pan later, tried to spin the nuts off the stainless bolts...instantly got tight, then galled, seized and needed to be removed with a death wheel FFS. Lesson learned!!