What are the main differences between a 1955 desoto hemi s21 and s22 because i need a new crankshaft (or refurbished) for my 291 s21 desoto block that im having milled right now. I dont want to have to spend 4500$ for a new crankshaft cause thats more than what im putting it in IS. I found a s22 crankshaft thats been refurbished for 500$ but i dont know if those 2 crankshafts are even compatible i need a little help here Sent from my iPhone using The H.A.M.B. mobile app