* Engine bay space: The engine bay is designed for the original engine size. A 2.0L might be too wide, too long, or too tall to fit without extensive modifications.
* Mounting points: The 2.0L engine's mounting points will almost certainly not align with the existing mounts in the Capri XR2 chassis. New mounts would need to be fabricated or adapted.
* Exhaust system: The exhaust system would need to be completely redesigned.
* Transmission: Compatibility between the 2.0L engine and the existing transmission is uncertain; it might require a different transmission entirely.
* Wiring harness and ECU: The wiring harness and Engine Control Unit (ECU) would need to be adapted or replaced to accommodate the new engine.
While not impossible with extensive fabrication and engineering, it's a very challenging and expensive undertaking. It's far more likely that a 2.0L swap would require significant cutting, welding, and custom fabrication that would render the project costly and potentially structurally unsound. You'd essentially be building a heavily modified car, not simply swapping an engine.
