GM Service Manual Online
For 1990-2009 cars only

DIESEL ENGINE HEAD GASKET INFORMATION

1982 V-6 DIESEL ENGINES MAY HAVE TWO DIFFERENT MANUFACTURED HEAD GASKETS ON THE SAME ENGINE. SINCE THERE IS AN APPEARANCE DIFFERENCE SOME OWNERS MAY QUESTION WHETHER THE ENGINE HAS BEEN REPAIRED. BOTH MCCORD AND GOETZE HEAD GASKETS ARE RELEASED FOR V-6 DIESELS WITH CAST IRON HEADS. EITHER MAY BE ON A GIVEN ENGINE, MCCORD GASKETS ARE BLUE GREY IN COLOR GOETZE GASKETS ARE BROWN IN COLOR.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.