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I think that the only vehicles with a HO 4.7 were the Overland package Grand Cherokees 99-04. The cams themselves though would have to be measured with a micrometer to know the difference.
If you have an H.O 4.7 look at the front of the intake manifold it will be silver. Thats how you tell.. and more then likley if you have the H.O manifold you have the cams unless it was swapped out.
