headers

[and1jr17]

I bought my cb7 with a f22b2 bottom end in it, i want to buy headers, do i have to order it for the 97 that it came out of, or can i just buy as if it was the stock engine, basicaly is there any difference in the headers from 91 to 97?.

[deevergote]

A header goes on the head. If you have an F22A head, you want an F22A header.

[and1jr17]

I'm just going off what i was told from the previous owner, so how can i be sure that it is an f22a head that I have?

[deevergote]

Well, you said it has an F22B2 bottom end? Did he say what the head was?


Look at the current exhaust ports. If they're evenly spaced 0-0-0-0, it's an F22A head. If they're not evenly spaced 0-00-0 then it's an F22B head.

[and1jr17]

so i'm guessing f22b head.

[deevergote]

Yeah, that's an F22B2 head... assuming it's not VTEC (I can see the block is F22B2).

You've got yourself a 5th gen Accord motor.

[and1jr17]

I wish it was V-tec, lol, I dont see the logic in this swap, it has the same horsepower and less torque than what was there before according to the F-series list

[deevergote]

Yeah, it's nothing special. The VTEC motor is garbage as well.

[benjerman112]

I got a question f22a header on a h22a

[deevergote]

I got a question f22a header on a h22a

Won't fit properly. Why would you want to do that anyway?

[js593]

so i'm guessing f22b head.

Is that a 4-2-1 header stock? Or is that a 4-1... i cant tell?

[deevergote]

Not sure. The F22A1 was 4-1, so that may be as well. I really don't know, nor do I care!

[js593]

Not sure. The F22A1 was 4-1, so that may be as well. I really don't know, nor do I care!

Lol, kinda harsh. reason im asking if thats a 4-2-1 header is so e can save his money or not. If its a 4-2-1 design like the H22, you would be downgrading as the H22 has a 4-2-1 with 2.5 (not 100% sure though) inch pipes, and the F22a1's have a smaller inner diameter for the headers sold on Ebay, therefor for a F22A1 its beneficial, Im just curious about the F22BX cause if they have wider headers already, there would be no point to "upgrade" to a pipe that is smaller.
NINJA EDIT!

If its the same header as this one, there would be no point of upgrading to a stainless steel one. If you have the header with one pipe going into the flange going to the downpipe, then at that point its a beneficial upgrade.

[deevergote]

I wasn't being harsh... just that I don't really care for these motors.



Do you understand how a header works? 4-1 is actually what race headers use. 4-2-1 is better suited for street cars, and provides more low and mid range power in exchange for top end. The type of header has nothing to do with the size of the primary runners. Most stock headers/manifolds have smaller diameter piping to provide low-end power. Grandma doesn't drive around at 6500rpm!

The H22's primaries are not 2.5". 2.5" is a good size for the collector that merges all 4 pipes, and for the exhaust piping that carries the gas from all 4 pipes. I do not know the stock diameter of the H22's primaries, or the diameter of the commonly used piping, but it's smaller than 2.5" for sure!



Also, the F22B header in the picture (quite unrelated to the F22B1/2 in question) has a cast iron manifold, which has very thick walls. The inner diameter of those runners is probably the same, or even less, than "smaller" headers.

[benjerman112]

Won't fit properly. Why would you want to do that anyway?

just wondering cause the h22a4 header & down pipe was way to short it wouldn't react the cat and the f22a1 header i had fit. could the f22 down pipe bolt up to the h22 header?