The LS1 debuted in the fifth-generation '97 Corvette, rated at a robust 345 hp and 350 lb-ft of torque. The next year GM spread the wealth, dropping LS1 engines into Camaro Z28s and Pontiac ...

The GM LS1 and LSX come from the same family of engines, but what's the real difference between the two? Quite a lot, as it just so happens.