Originally posted by 83countrysquire
For one thing, 240hp is sad. It's kind of pathetic that an engine with such a reputation as a performer never made any real power numbers from the factory. HO parts are cheap. GT40 parts are moderately priced. The Cobra motor has Cobra upper intake, GT40 lower intake, and GT40 heads. The Cobra motor also comes factory with Crane 1.7 ratio aluminum roller rockers, where the Explorer come with stock stamped steel rockers. The Explorer motor has GT40 upper and lower intake, with GT40P heads (which are a little better). With the right cam and exhaust, the Explorer motor can put out 300hp without any other mods.
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