Epoxy might work as a temporary fix.
I have a bone stock SE-R radiator that doesn't leak you canSE-? said:well its more my fault ha. i was in a lil wreck, and i was hittin my radiator support back, it was pushed about an inch so my hood wouldnt latch right, when i was hittin the support i hit my radiator, it crakced, its very a small hairline crack about ( ) that long on the very top of it...with out replacing it, is there any way to patch this lil crack???? if there is no way, does anyone know of any places to get aluminum fluidne style radiators??? baxter auto quoted me $317.