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Right on top of the engine you'll see the valve cover/"rocker box" right down the middle of it are four black plastic squares each held on by two screws with wires going to each one. These are the secondary coils (for some reason the Chevy guys decided to make a secondary coil for each plug instead of one for all. It's not traditional, but there are some benefits for doing it this way.) and the spark plugs are located directly beneath them. You'll need an socket extension and an actual 5/8" spark plug socket or a pair of long needle nose pliers to get the old plug out (they're a ways down in there.)

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13y ago

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