Run, don't walk to your nearest auto parts store (i.e. Autozone) and get a NEW ONE!Roger said:
Do not fool with those JB Weld CRAP fix-it-in-5-minute schemes..they will cost you a new motor!!!
In contrast, a radiator can be had off EBAY or radiators.com or AUTOZONE for $110-$175 TOPS
Dealer = $549 w/ 6mo wty - $649 1 year wty....
The first is refurb, the second reman...
I would not cheat it buddy