I was the one who came in here last week asking about swapping the '89 Integra LS engine into a '90 Civic. People here told me it was a no go, but I am getting information from other places that the engine from the '89 Integra will EASILY swap into the '90 Civic. I really need to make sure everything is right before I make any purchases.

Justin D. Fender

 

NO it will not work. the motor mount location on the 86-89 integra engine aka D16A1 are not compatible with EF/88-91 civic/crx motor mounts. You're only option is to get a JDM 89-91 ZC block or full engine. The JDM 89-91 ZC engine is designed for the EF chassis.