loki: Jason's truck (the scottsdale) is a 454 ci bored out to 492 ci, with forged pistons and a racing cam (or cams, lost there) (no over revving there), completely rebuilt for propane.
also has 40" super swampers, a warn 10,000 winch, and crossover steering. 650hp, dana 60 axles, 14 bolt corporate full floating rear (welded together), 4 speed manual, 4.90 gearing.