Crow adjustable Timing gears for 221

[GTLexus]

Hey not sure if anyone can give me an answer. Crow has an adjustable timing set for non crossflow engines but they advise it is only for 1970 and later engines.

Would this timing gear suit a 221, not sure of its year of make?

Here is the link to their catalogue http://www.crowcams.com.au/media/catalo ... 0%20XA.pdf

Thanks in advance as Crow has not been able to answer my question directly

 

[addo]

Yeah, it ought to fit.