The LS7 isn't just a great engine — it's a race-derived record-breaker that's meant to be driven and can achieve 100,000 miles or more if properly cared for. Below, we’re digging into the engineering, processes, hardware, and literal race-derived parts that set the first 500-horsepower Corvette Z06 apart from its competitors of the day, as well as a major concern with valve guide wear that diminished the confidence of some in the owner's community along the way.