Will a turbo 400 work on 1993 silverado?

No, a Turbo 400 transmission will not directly work in a 1993 Silverado. The 1993 Silverado uses a different transmission mounting pattern, different electronic controls (if it has an electronically controlled transmission), and likely different driveshaft lengths and yokes. The Turbo 400 is a much older design and is not compatible with the drivetrain of a later model truck like that. You would need extensive modifications, likely including a custom driveshaft, motor mounts, and potentially significant fabrication work, to even attempt such a swap, and it's not a straightforward process.