Engine VIN code 3,8,7,9. Exhaust. 1.313/1.375T x 1.5695 x .2188". 45 Deg. Hi-Chrome Cast. With 1.500" - 1.530" valve head diameter. (4 pack).
3.0L / 181 OHV V6 12V "E,L" Buick 3.800" Bore 82-88
GM
3.3L / 204 OHV V6 12V "N" Buick 93.98mm Bore 89-93
GM
3.8L / 231 OHV V6 12V "1,4" Buick 3800 S/C 96.50mm Bore 91-07
GM
3.8L / 231 OHV V6 12V "2,A" Buick 231 3.800" Bore 78-84
GM, CHEVROLET
3.8L / 231 OHV V6 12V "2,C,K,L" Buick 3800 96.50mm Bore 88-09
GM
3.8L / 231 OHV V6 12V "L" Buick 3800 96.50mm Bore 92-95
GM, CHEVROLET
3.8L / 231 OHV V6 12V Buick 231 3.800" Bore 75-88
GM
3.8L / 231 OHV V6 12V Buick 231 Turbo 3.800" Bore 78-89
GM
3.8L / 235 OHV L6 12V Chev. 3.5625" Bore 50-62
GM
4.1L / 250 OHV L6 12V Chev. 3.875" Bore 65-79
GM
4.1L / 252 OHV V6 12V "4" Buick 3.965" Bore 80-84
GM
5.7L / 350 OHV V8 16V Chev. 4.000" Bore 67-97
GM
6.0L / 368 OHV V8 16V "6,9" Cad. 3.800" Bore 80-84
GM
6.6L / 403 OHV V8 16V "K" Olds. 4.351" Bore 77-79
GM
GM181C-BU | 3.0L / 181 OHV V6 12V "E,L" Buick 3.800" Bore 82-88
BUICK,
OLDSMOBILE,
PONTIAC
GM204C-BU | 3.3L / 204 OHV V6 12V "N" Buick 93.98mm Bore 89-93
BUICK,
OLDSMOBILE,
PONTIAC
GM231CA-BU | 3.8L / 231 OHV V6 12V Buick 231 3.800" Bore 75-88
BUICK,
OLDSMOBILE,
PONTIAC,
CHEVROLET
GM231CB-BU | 3.8L / 231 OHV V6 12V "2,C,K,L" Buick 3800 96.50mm Bore 88-09
BUICK,
PONTIAC,
CHEVROLET,
OLDSMOBILE
GM231CBA-BU | 3.8L / 231 OHV V6 12V Buick 231 Turbo 3.800" Bore 78-89
PONTIAC,
BUICK
GM231CC-BU | 3.8L / 231 OHV V6 12V "1,4" Buick 3800 S/C 96.50mm Bore 91-07
PONTIAC,
BUICK,
CHEVROLET,
OLDSMOBILE
GM231TA-BU | 3.8L / 231 OHV V6 12V "2,A" Buick 231 3.800" Bore 78-84
CHEVROLET,
GMC
GM231TB-BU | 3.8L / 231 OHV V6 12V "L" Buick 3800 96.50mm Bore 92-95
CHEVROLET,
OLDSMOBILE,
PONTIAC
GM235C-CH | 3.8L / 235 OHV L6 12V Chev. 3.5625" Bore 50-62
CHEVROLET
GM250C-CH | 4.1L / 250 OHV L6 12V Chev. 3.875" Bore 65-79
CHEVROLET,
PONTIAC,
OLDSMOBILE,
BUICK
GM252C-BU | 4.1L / 252 OHV V6 12V "4" Buick 3.965" Bore 80-84
CADILLAC,
BUICK,
OLDSMOBILE,
PONTIAC
GM350CA-CH | 5.7L / 350 OHV V8 16V Chev. 4.000" Bore 67-97
BUICK,
CADILLAC,
CHEVROLET,
OLDSMOBILE,
PONTIAC
GM368C-CA | 6.0L / 368 OHV V8 16V "6,9" Cad. 3.800" Bore 80-84
CADILLAC
GM403C-OL | 6.6L / 403 OHV V8 16V "K" Olds. 4.351" Bore 77-79
BUICK,
OLDSMOBILE,
PONTIAC
