383 crank swap?

I have 2 383s, one is a seized '69 2 barrel and the other is a '67 magnum 4 barrel with a blue crank. Can I use the '69 2 barrel crank (working on getting it un-seized) in the '67 magnum block?
yah u can try soakin the cylinders with some magic marvel mystery oil.it will unseized it.u can put the 69 crank in the 67.u should take the 69 crank the machine shop to get it check out.