Cracked block....recommendations?

cudascott said

Drain it down below the crack then grind it shiny on the crack and jb weld
It won't leak again as long as you get the area clean

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I agree...I did a 318 back in the mid 80's like that and the engine ran another 100,000 miles. after grinding i would spray the crack with brake cleaner and let it dry for an hour or 2 before jb welding it. I did the same repair on an old 70 John Deere diesel a few years ago and it still doesn't leak.