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1957 Corvette: Service Bulletin: 1957 Passenger Car and Truck Camshaft Identification

Subject: 1957 Passenger Car & Truck Camshaft Identification
Model and Year: 1957 Passenger Car & Truck
Source: Chevrolet Service Bulletin
Bulletin Number: DR #292, Section VI, April 29, 1957


Charts on pages 2 and 3 of this bulletin list 1957 Passenger and Truck Camshafts used in the various engines and a means of identification by casting number.

In instances where two casting numbers are given in chart for one engine, the upper number identifies the service shaft and the otehr the production shaft.  The service shaft is universal, fitting all models 55 thru 57.

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.

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