what header can i use for a JDM F22b dohc motor
H22/h23or f22 sohc
please help

 

h23 header, or you can use the 90-93 accord header, they both bolt up.

 

I just bought Prelude SI headers for my JDM F22B DOHC. However the header A pipes are much longer than the accords and they are off to the drivers side by about 2 inches. Using the pipes you mention did you have to customize your pipes?Did you have to change a flange or cut the header pipes? Looking at my setup it looks like I need to cut the pipes and change a flang to match the flang on my CAT. Or did I simply waste money and buy the wrong pipes?

Thanks

 

if u just swapped your motor over, then you need to shorten your exhaust, and move the cat back. you also have to change the flange if you havent already. i did this on my 94 accord ex. shorten exhaust piping, moved the cat back, and change the flange for the header to fit.