About 45yrs ago i managed a A/C Delco warehouse in Maryland and got great prices on Target engines. I installed a few for people over a couple years without issue, but one 350 was for a show car Monte Carlo that had to be chromed out so before i installed the new oil pan i checked the rod bolts and found 3 hand tight. This was back when they were painted blue and iirc were assembled in Mexico. Needless to say i stopped promoting them and never used another.