Steel plugs.
2.4L / 144 OHV L6 12V "D,S" 3.500" Bore 60-64
FORD
2.8L / 170 OHV L6 12V 3.500" Bore 61-72
FORD
3.3L / 200 OHV L6 12V "B,T,X" 3.680" Bore 63-83
FORD
3.3L / 200 OHV L6 12V "T" 3.680" Bore 64-74
FORD
4.1L / 250 OHV L6 12V "C,L" 3.680" Bore 69-80
FORD
4.1L / 250 OHV L6 12V "L" 3.680" Bore 69-74
FORD
FO144C | 2.4L / 144 OHV L6 12V "D,S" 3.500" Bore 60-64
FORD,
MERCURY
FO144T | 2.4L / 144 OHV L6 12V "D,S" 3.500" Bore 60-64
FORD
FO170C | 2.8L / 170 OHV L6 12V 3.500" Bore 61-72
FORD,
MERCURY
FO170T | 2.8L / 170 OHV L6 12V 3.500" Bore 61-72
FORD
FO200CA | 3.3L / 200 OHV L6 12V "B,T,X" 3.680" Bore 63-83
FORD,
MERCURY
FO200TA | 3.3L / 200 OHV L6 12V "T" 3.680" Bore 64-74
FORD
FO250C | 4.1L / 250 OHV L6 12V "C,L" 3.680" Bore 69-80
FORD,
MERCURY
FO250T | 4.1L / 250 OHV L6 12V "L" 3.680" Bore 69-74
FORD
