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Powertrain

Engine Assembly

For Pontiac, Oldsmobile and Buick vehicles

  • Fitments

(6-231, 3.8L, VIN C, 8th digit)

1991 Pontiac BONNEVILLE
1991 Oldsmobile EIGHTY EIGHT

(6-231, 3.8L) w/o TPI (VIN C, 8th digit)

1991 Buick LESABRE

(6-231, 3.8L) w/o supercharged option w/o TPI (VIN C, 8th digit)

1991 Buick PARK AVENUE