My 216 had a crack on driver's side, just above oil gallery, a good 10-12 inches. Had been JB-Welded when I bought the truck, but leaked regularly, but minorly. Engine was rebuilt this winter. With block out, and cleaned, the shop allegedly wedged out the crack and filled it with DevCon (supposedly harder/better than JB). Sadly, with engine mounted back in truck, it is still dripping to varying degrees, depending on engine temp.
I have elected to live with it - once again - and study it more to determine what action to take next, possibly fix-a-leak stuff.
A friend has an Olds six cylinder from '29, also with a crack that has been patched, AND leaks.
I'm coming to the conclusion that it's VERY hard to permanently repair a crack in the block. :mad: Best you can do with engine in truck, drain it, dry it, clean it, and try the JB. Not too much effort for the potential gain. Just don't get your hopes up too much.
My (cynical) opinion, anyway . . .
-Michael
