JB Weld on cracked block in Dodge Cummins 3500?

My husband has a 99' Dodge Ram 3500 with the Banks turbo package. seemingly we're the holders of the dreaded 53 block and he's a 6" crack on the motor and the truck overheats excessively. We tried K&W block sealer which worked like a charm for about three months and now it's starting to overheat again. My husband thought it could be a splendid idea to clean the crack well and JB weld the crack. Has anybody ever done this or know of someone that did successfully?

There are better epoxys marine tex I had a grove in a 25 hp cyc an filled it honed it an ran it lasted one yr an still running&gt, used it on burned out exhaust housing out boards worked great&gt,1000 deg temp&gt,?

It most likely will not work because the engine's operating temperature and the stresses to which the engine is subject are both too great for a fix. The only thing that will work is replacing the engine. Sorry. Good luck.

Yes, I have. Used it on a 305 a week before it went from LA to L. A. Also JB'd a bottom pulley to a crank on a 2.2 Mazda that wallowed out a key. Ran for 43K.
Give it a attempt.

It's a temporary fix at best. If it is worth your time and energy, then it is worth the six bucks for JB Weld. Start looking into substitute engine alternatives. Check around for the best core value considering your block is junk. possibly the JB Weld will keep the block sealed long enough to get things sorted. Good Luck.

Why not take it to a proffessional welder who knows how to weld cast iron.I welded a block in a big rig it requires using a rosebud torch to heat the cast then welding it with a stick welder with the correct rod.It may make for a permanent fix or atleast add significant longevity to the motor.