Getting Ready for the Magnum Swap. (help?)

All the magnum heads are cracked, and it doesn't really matter, they still run 300k quite regularly around here. I've done about 10 magnum swaps over the years, buy at junkyard after hearing run, pop a carb intake on there, use the hughes engines cam snout extension, and done. Cheap, easy,


well DAMN!!!! That's good to know, as I thought that once they cracked - they required immediate replacement. Thanks for the info