Hello Melissa1991-- My personal guru, Tom Fahy of the Newton Street Garage in Brighton, Ma., says "maybe." If the engine will fit into the engine compartment of the CRX and if you can get the motor mounts to line up, you should be able to upgrade your Civic, although it may take a bit of expert custom wiring and fitting. Good luck from Bovan.
I agree with Bovan - the short answer is...maybe.
There have been literally dozens of Accord/Prelude engine/transmission variants over the years that might have been stuffed into a CRX at one time or another. To make it easier I'll use one example:
A 2.3L Prelude VTEK engine will "fit" into a 1991 CRX with substantial structural modifications to the CRX frame. Unlless you run your own welding shop, this would cost a lot of money.
So In this case - will it fit? Yes.
Would you want to? Probably not.
If you want an engine that will "bolt-in" to a CRX, thereby minimizing your cost while achieving a significant performance gain, then your options are very limited.
For more info visit these links:
http://hybrid.honda-perf.org/tech/
http://hybrid.honda-perf.org/tech/4gtech.html
http://hybrid.honda-perf.org/
Enjoy!
yes it they will fit, they make swap kits for them which consist of custom motor mounts pretty much. everything else will bolt up, and the stock wiring harness will work, you just need a prelude ecu. also if you swap a vtec engine in you need to run the wiring for that and put in a relay somewhere. most people use the ac relay if it came with it but there are other options. another option for a swap if you wanted a little more room in the engine bay is either a b16 or a b18.
theres no MAYBE to this question ive seen it done hundreds of times....you just gotta buy the mounts wich u can get newhere abnd you have to cut the wheel well on the inside for some clearence but once u do that ur crx will be a beastttt..........this is coming from a crx fanatic who drives 1 with a swap