GM Full-Size Trucks 1980-1987 Repair Guide

Engine

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See Figure 1

On in-line six cylinder engines the engine number is located on a pad on the right hand side of the cylinder block, at the rear of the distributor. On the V6 and V8 engines the engine number is on the pad at the front right hand side of the cylinder block, except for 1980 454 V8s, which have the code on a pad at the front top center of the engine block immediately forward of the intake manifold. On diesel engines the engine number is on a label attached to the rear face of the left valve cover. For example engine number

F1210TFA:


F -Manufacturing Plant. F-Flint and T-Tonawanda
 
12- Month of Manufacture (December)
 
10- Day of Manufacture (Tenth)
 
T- Truck
 
FA- Transmission and Engine Combination
 



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Fig. Fig. 1: Common engine VIN locations

 
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