That "looks" like it will work if you are using the common mid 70's brackets, some earlier brkts may be different. Maybe someone else can confirm based on the part# of the fan but from my experience any 350-455 mid 70's 7 blade fan will work on most model cars including 2nd gen firebirds.
Also should be easy to test fit it, if it sits about half way in/out of the shroud it will work.
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