ok so i'm trying to help a friend who is doing a swap right now, he has a 90 cb7 sedan, taking the f22a4 out and replacing with a f22b1 out of a 95 accord ex. a few things we have noticed already are different, IACV is on front of his motor but on the back of the new one- no biggie. but his fuel rail is backwards, the b1 has the banjo bolt on the drivers side of the fuel rail instead of the pass side, is there a oem replacement fuel line with banjo bolts from another make that we can get as a shelf item? Also i told him just reuse his manifolds, but when i got there and looked at it, the IM and header both have diff patterns, so thats a no go. any help is appreciated.

 

if you remove the "cover" for the fuel rail, you will notice that there is another banjo bolt near the pass. side

i hear h23 and f23 IM will fit with minor grinding in certain areas.

f22bx exhaust manifold bolt pattern is different than f22ax

 

The F23A1 IM will fit the F22Bx heads but the F22Ax and H23A1 IM's require some work to fit onto the F22Bx heads and I wouldn't say it's minor. There have been many threads that discuss it and show the differences.

If you want a larger plenum with less headache for the F22Bx, go with the F23A1 IM.

I'm not sure if it's so much the bolt pattern is different but the port spacing is definitely different. O-O-O-O vs O-OO-O