header help

[T34me]

ok, i currently have a 4-1 header on my b18b in my 94 integra. Now, with the motor i am building, it has a 1990 b18a head on it. I have heard rumors that i would have to switch my manifold because the pre 92 b18's have a different bolt pattern. So i checked with acura's parts list and while the headers do have different part numbers, they have the same gasket part number, which leads me to believe the bolt pattern is the same and i can use the header i have now with it. Any thoughts on this matter?? Anyone know if i am going to run into a problem?

[T34me]

well, after some more reading, i think its just a question of lenght between them, not the actual pattern, so im pretty sure the one i have now will work, but of course someone let me know if im incorrect here.

[VickNotic]

you are correct! only differences of any header, is the length wise. which connects to cat convertor ..