The spec sheet initially reads like that of a grudge racer who’s being devious about the exact specifications of what’s under the hood. Except Laflower’s is entirely legit. Engine block? Stock. Crank, rods, and pistons? Stock. Intake and exhaust valves and rocker arms? Stock. Machine work? Factory. Measuring 364 cubic-inches, it’s easier to just read off what isn’t stock about the 2010-model, 6.0-liter engine than what is.