Will the engine from 2004 accord fit into my '91, and what is the engine code?

 

i'm sure it will fit, but not without extensive modification, fabrication, and welding...the motor is a k24...the k24's aren't really much larger (dimensionally) than the f22 you are currently sporting...

 

The K24A4 is a very good engine. Although not much larger than the 2.2 it has a lot more torque and more horsepower as well. The layout of the engine compartment is totally different though, so not sure how that would work.