Here's why:
* Engine mounts: The ESi has different engine mounts than the Civic with a B18C engine.
* Transmission compatibility: The ESi uses a different transmission, usually a 5-speed manual, while the B18C is often paired with a 5-speed or 6-speed manual.
* Exhaust system: The exhaust system on the ESi and the B18C-equipped Civic are incompatible.
* Wiring harness: The wiring harnesses for the ESi and the B18C are different.
Swapping a B18C into an ESi is a complex process that requires significant modifications:
* Engine mounts: Custom engine mounts need to be fabricated to fit the B18C into the ESi's bay.
* Transmission adapter: You'll likely need a custom adapter to connect the B18C transmission to the ESi's driveshaft.
* Exhaust modifications: The exhaust system needs to be modified or replaced to accommodate the B18C.
* Wiring: The wiring harness needs to be re-wired or modified to work with the B18C.
It's important to note that swapping an engine can be a challenging project that requires specialized skills and knowledge.
Before considering this swap, you should weigh the following:
* Cost: Swapping a B18C into an ESi can be quite expensive due to the required modifications.
* Time: It can be a time-consuming project, especially if you're doing it yourself.
* Legal compliance: Make sure you are aware of any legal requirements for engine swaps in your area.
If you're considering this swap, I recommend seeking advice from experienced mechanics or specialists who have experience with Honda engine swaps. They can help you determine the feasibility of the project and guide you through the necessary steps.
