Might be a later model engine??
Only the '58 T-Bird 352's had black valve covers & blue blocks. The '59s are black blocks with BLUE valve covers, & the '60 352's used black blocks with yellow valve covers. ALL 3 years used the white air cleaners- Even on the 430cid 1959-60 Birds.
-Jon in TX.
The 1960 Ford Thunderbird. The WORLD'S most wanted car....