For 1990-2009 cars

# REVISED CYLINDER HEAD GASKET IMPROVED SEALING

#### VEHICLES AFFECTED: 1987-89 B/F AND G CARS, C/K/R/V AND G TRUCKS W/5.OL AND 5.7L ENGINES

A cylinder head gasket with improved sealing characteristics is now available for service use on all 5.OL and 5.7L engine applications. The applicable part numbers are listed below:

Application Cylider Head Gasket P/N ----------- ----------------------- 5.OL Engines 10105115

5.7L Engines 10105117

5.OL Engines 10105115

These parts are currently available from CANSPO

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.