havent had a civic in a while but couldnt pass up the deal on a 91 civic with everything original and cold ac clean inside and out 276k miles runs good 32mpg. its a civic 4 door.

anyways i was wondering would it be worth throwing a ls in it? i really wanted a b16 or gsr but i figure later i could slap a gsr head on the b18 block.


but since this is a DPFI system how hard will it be to install the b18 and wire it all up>

 

well not easy perse, but not difficult. you'll need to do a dpfi to mpfi conversion among other things.

https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/detailed-b-series-into-crx-ef-civic-parts-list-more-2769325/

read through it and should hopefully answer your questions.