Dodge BigHorn

I bought this resin Big Horn off EvilBay. I can't seem to find much in reference photos about what engine it had. I've Got the frame, Suspension, Fuel tanks and a bunch of oddball stuff gathered up for it. But no wheels or tires yet. I'll have to grab my camera out of the Jeep and take some pics. I'm not real pleased with how thick the casting is. If anyone on here knows anything about these trucks, I would greatly appreciate the info.