Ok, Ive got a 1993 Prelude Si and it had an H23A1 up until about an hour ago i had a bad valve that broke off and caused the engine to sieze up. Anyway, now of course I need a new motor and I was wondering what the best swap would be? I loved the torque that the H23 put out so im thinking an H23 block with the H22 vtec head? or f22? or something else I dont know about?

 

want torque? go k24.
https://honda-tech.com/forums/honda-prelude-4/k20-k24-swap-4th-gen-prelude-2850965/

I'm considering it in my 5th gen cause I'm itching for a new project.

 

Budget and goals

 

i wanna have something i can build. and i dont wanna have to do a lot of fabricating to get the engine in. like i said i like the torque that the h23 had so im guessing the easiest swap would be the h23 block with an h22 vtec head?

 

built k24 is the best swap

 

is it an easy swap? i imagine ive gotta change the obvious **** like transmission, axles, ecu, but what about mounts, fuel lines, and shift linkage?

 

^No requires the things you said you weren't willing to do like some fab work, the passenger mount bracket in the bay has to be cut out and re-welded in a new spot if I'm not mistaken. Just get a H22a, you'll be very happy with it, it's the easiest option.

 

^This, H22 is a straight swap, only thing you would need to do is wire in VTEC and there is a write up around here on how to do it. A lil bit more torque than an H23 in the higher end of the power band and also has a higher redline. You perfer your 2.3L than get an H23A VTEC, you can get either swaps at Hmotorsonline.com at a good price.