Crate Motors-"Not For Use With A/C" Warning

I purchased my mopar crate magnum 402 stroker 6 years ago and NEVER had an issue with it . I beat the snot out it everytime a take it out !
That engine Rocks !!! IT'S a BEAST !
I here all these issues about other magnum engines brakeing down ..... What's with that ?....
I must have a freak engine !
darty