The LS1 engine is a modern, fuel-injected engine that requires a different type of engine control unit (ECU) and wiring harness than the original carburetor-based engine. Additionally, the LS1 engine is larger and more powerful than the original engine, so it would require modifications to the car's transmission, driveshaft, and suspension to handle the increased power.
It is important to note that such a project would require extensive knowledge of automotive mechanics and fabrication. It is also worth considering the cost and effort involved in such a project, as it could be a time-consuming and expensive endeavor.
If you are considering such a project, it is highly recommended to consult with a professional automotive mechanic or restoration shop to assess the feasibility and cost-effectiveness of the swap.
