The guys over at Hot Rod magazine wanted to prove it’s possible to make big horsepower from a Chevrolet big-block V-8 lifted from a junk1986 motorhome. Why a motorhome? Well, they can be had stupidly cheap, not counting the extra work it takes to remove the engine and then dispose of the lifeless RV. What’s left, though, is a 454 cubic-inch big-block Chevy with huge potential. To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performance’s dyno room.