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The 1986 Chevrolet Suburan came with two engines. The 5.0L - V8 and the 5.7L - V8. Very hard to tell these engines apart. If you will look under the hood you will see a placard somewhere on the radiator mounting bracket or under the hood itself, with the engine size listed. Also listed there will be some other inforamtion like Spark Plug gap.

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17y ago

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