parts geek 2000 corvette 5.7 engine will not start from the key but all ignition lights turn on by the key dash and will start with clutch

Hello, check the battery first and foremost. The battery may be charged enough to power lights and accessories, but may not have enough amperage available to turn that 5.7L V8 engine. Test the battery for state of charge and the ability to handle a load. You may find that this will bring you to a result you are looking for.

Possible starter motor failure.