.3414" stem. 1.653" head. 1 groove.
5.8L / 351 OHV V8 16V "H" Modified 4.000" Bore 75-79
FORD
5.8L / 351 OHV V8 16V "H,G" Modified 4.000" Bore 75-82
FORD
6.6L / 400 OHV V8 16V "S" 4.000" Bore 71-79
FORD
6.6L / 400 OHV V8 16V "S,Z" 4.000" Bore 77-82
FORD
FO351MC | 5.8L / 351 OHV V8 16V "H" Modified 4.000" Bore 75-79
FORD,
MERCURY
FO351MT | 5.8L / 351 OHV V8 16V "H,G" Modified 4.000" Bore 75-82
FORD
FO400C | 6.6L / 400 OHV V8 16V "S" 4.000" Bore 71-79
FORD,
LINCOLN,
MERCURY
FO400T | 6.6L / 400 OHV V8 16V "S,Z" 4.000" Bore 77-82
FORD