Brass plugs.
4.3L / 260 OHV V8 16V "8,F" Olds. Gas 3.500" Bore 75-82
GM
4.3L / 260 OHV V8 16V "P" Olds. Diesel 3.500" Bore 79-79
GM
5.0L / 307 OHV V8 16V "Y,9" Olds. 3.800" Bore 80-90
GM
5.4L / 330 OHV V8 16V Olds. 3.938" Bore 64-67
GM
5.7L / 350 OHV V8 16V Oldsmobile 4.057" Bore 68-80
GM
5.7L / 350 OHV V8 16V "N" Olds. Diesel 4.057" Bore 78-85
GM
5.7L / 350 OHV V8 16V "N,Z" Olds. Diesel 4.057" Bore 78-84
GM, CHEVROLET
5.7L / 350 OHV V8 16V Olds. Gas 4.057" Bore 68-80
GM
6.6L / 403 OHV V8 16V Oldsmobile 4.351" Bore 77-79
GM
6.6L / 403 OHV V8 16V "K" Olds. 4.351" Bore 77-79
GM
7.0L / 425 OHV V8 16V Oldsmoble 4.125" Bore 65-67
GM
7.0L / 425 OHV V8 16V Olds. 4.125" Bore 65-67
GM
7.5L / 455 OHV V8 16V Oldsmobile 4.125" Bore 68-76
GM
7.5L / 455 OHV V8 16V Olds. 4.125" Bore 68-76
GM
GM260CA-OL | 4.3L / 260 OHV V8 16V "8,F" Olds. Gas 3.500" Bore 75-82
OLDSMOBILE,
BUICK,
PONTIAC
GM260CB-OL | 4.3L / 260 OHV V8 16V "P" Olds. Diesel 3.500" Bore 79-79
OLDSMOBILE
GM307C-OL | 5.0L / 307 OHV V8 16V "Y,9" Olds. 3.800" Bore 80-90
BUICK,
CADILLAC,
OLDSMOBILE,
CHEVROLET,
PONTIAC
GM330C-OL | 5.4L / 330 OHV V8 16V Olds. 3.938" Bore 64-67
OLDSMOBILE
GM350CE-OL | 5.7L / 350 OHV V8 16V Olds. Gas 4.057" Bore 68-80
BUICK,
CADILLAC,
OLDSMOBILE
GM350CE-OLD | 5.7L / 350 OHV V8 16V "N" Olds. Diesel 4.057" Bore 78-85
BUICK,
CADILLAC,
CHEVROLET,
OLDSMOBILE
GM350T-OLD | 5.7L / 350 OHV V8 16V "N,Z" Olds. Diesel 4.057" Bore 78-84
CHEVROLET,
GMC
GM403C-OL | 6.6L / 403 OHV V8 16V "K" Olds. 4.351" Bore 77-79
BUICK,
OLDSMOBILE,
PONTIAC
GM425C-OL | 7.0L / 425 OHV V8 16V Olds. 4.125" Bore 65-67
OLDSMOBILE
GM455C-OL | 7.5L / 455 OHV V8 16V Olds. 4.125" Bore 68-76
OLDSMOBILE
