Junkyard LS Swaps are EVERYWHERE! Prices range from 600 bucks to 3500 on the used market, so WHICH ONES ARE WORTH THE MONEY?! We take a $2000 6.0 Gen 4 Truck Engine and put it against a $1000 5.3 Gen 4 with the same modifications! They get the same upgraded camshafts, springs and valvetrain, and the same induction setup, and we try to decide if the extra squeeze is worth the cash!