Heck, you might try it and see!! All you will be out is your time and the cost of a new set.
I would gob it up real good with whatever you want to use, Indianhead, Aluminum paint, Copper-Cote or whatever and go for it! Imho...
Torque her down, fill her COMPLETELY up with antifreeze or water, (this is where a little 1/8th inch hole in the T-stat helps), and start her up, do a tuneup and watch for any bubbling in the radiator filler neck and if you don't see any bubbles, should be OK.
Good luck with her.. pdq67