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Plastic Timing Gears?
I know from experience with my '78 K25 and '79 G15 that the plastic timing gears can be counted on to fail at right around 130K miles. If I knew then what I know now, the bent valves and bent pushrods could have been avoided by replacing the timing gears sooner. My neighbor has a '94 C10 that is nearing the magic number. Does the' 94 350 engine also have the plastic gears?
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