Stock. .3413" stem. 1.600" head. (25 / bulk).
3.0L / 181 OHV L4 8V Four Cylinder 4.000" Bore
GM
4.9L / 302 OHV V8 16V Chev 4.000" Bore 67-69
GM
5.7L / 350 OHV V8 16V Chev. 4.000" Bore 67-97
GM
6.3L / 383 OHV V8 16V Chev. Small Block Stroker 4.000" Bore 67-02
GM
6.6L / 400 OHV V8 16V Chev. 4.125" Bore 70-76
GM
GM302C-CH | 4.9L / 302 OHV V8 16V Chev 4.000" Bore 67-69
CHEVROLET
GM350CA-CH | 5.7L / 350 OHV V8 16V Chev. 4.000" Bore 67-97
BUICK,
CADILLAC,
CHEVROLET,
OLDSMOBILE,
PONTIAC
GM400C-CH | 6.6L / 400 OHV V8 16V Chev. 4.125" Bore 70-76
CHEVROLET,
PONTIAC,
OLDSMOBILE