This part came from a 1978 F250 pickup with a 460.
Genuine Ford parts
Ford part # D3TZ-8600-B
Engineering # stamped on back D6TA - A2A
$300 each
D4TA-MA H D4TA-MA
1973 F250, 1974 F250, 1975 F250, 1976 F250, 1977 F250, 1979 F250, 1974 Ford 460, 1975 Ford 460, 1976 Ford 460, 1977 Ford 460, 1979 Ford 460, 1980 Ford 460