Here's why:
* Engine Bay Size: The Caprice's engine bay is designed for a smaller, less powerful engine than a Corvette's. You'll likely need to modify or replace the firewall, inner fenders, and possibly even the hood to accommodate the Corvette engine's size and accessories.
* Mounting Points: The Corvette engine's mounting points won't line up with the Caprice's frame. Custom engine mounts will need to be fabricated.
* Transmission: The Corvette transmission likely won't mate directly to the Caprice's existing drivetrain. You'll need a compatible transmission and likely a custom driveshaft.
* Wiring Harness and Computer: The Corvette's engine management system (wiring harness and computer) will need to be integrated into the Caprice's electrical system. This is a complex task.
* Exhaust System: A custom exhaust system will be required.
* Cooling System: The Caprice's cooling system may be inadequate for the more powerful Corvette engine. Upgrades may be necessary.
In short, while it's not impossible, it's a major project requiring significant mechanical skills, fabrication expertise, and a considerable financial investment. It's not something a novice mechanic should attempt. You'd be better off seeking the help of a professional hot rod shop.