These stock appearing 4x4 trucks, must weigh in at 6,400 pounds. They feature a 510 Cubic Inch engine and DOT regulation tires. The exhaust may go up as well as beneath the truck.
While National 4x4s don't look like your typical truck on the street, these trucks will more resemble your favorite truck aside from the stickers and detailed paint jobs. Several of these trucks feature Dragon Engineering products to include engines, wiring, ladder bars frame reinforcement, and custom hitches.
6400 Pro Stock 4x4 Rules
6400 Pro Stock 4x4 Standings
General Rules
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