* Engine Mounts: The engine mounts are likely different between the two years. While the block itself might be similar, the location and design of the mounting points can change, requiring modification or the use of different mounts.
* Transmission: The transmission from the 1993 truck might not bolt directly to the 1997's transmission. You'd likely need to ensure compatibility or swap transmissions entirely.
* Wiring Harness: The wiring harness for the 1993 engine will likely be incompatible with the 1997 truck's computer and systems. You'd need to either extensively modify the harness or source a harness from a 1997 truck with a similar engine.
* Computer/ECU: The 1993 engine's computer will be incompatible with the 1997 truck's systems. You will need a compatible computer.
* Exhaust System: Exhaust manifolds and the rest of the exhaust system are likely to require modification or replacement.
In short, while the 350 is a common engine, it's not a simple drop-in swap. It'll require a significant amount of mechanical work and potentially custom fabrication to make it work. You'll need to compare engine bay dimensions, mounting points, and transmission compatibility carefully before attempting the swap. Consult a mechanic experienced with Chevy truck engine swaps for guidance.
