The engine has the number 0C4 on the block ( front right side )
That is for    0  1970  C  march  4  the day    ( so it was  bilt on the 4 march 1970 )

The engine number   0F0F170087  ( On the block center back top )
0 = 1970
F = Dearborn
0 = Convertible ( Cabrio )
F = Engine ( Motor ) 302 - 2v  ( 5 liter )

The 170087 is for the body match