FENDERWELL HEADERS/ FRONT RIM SIZE

Malex said

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Ok. I was curious about this as I've started a 68 Dart build, RB block and will be using an engine plate. Want to run at least a 26 to 27" front tire. Want to go with fenderwell headers and wondering what would need to be modified to get the motor back enough. I haven't purchased headers yet.

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That is a huge diameter tire for that car. (27)

Run the fender well headers because you want to for the look and “Oh wow!” But not for the power perspective. The tubes are to long for a serious effort. They also have a real estate issue if you start moving the engine back. The tubes go right under the master cylinder and exit close to the corner at the fire wall. Also the tubes that travel near the front tire also have a very limited amount of room.

What brand and size tube header?

Look at as many pictures as you can and if your exact header if you can find it. There were/are several manufacturers of this fender well exit header and there all not the same.

I think that you will have better luck with TTI headers if you move the engine rearwards. The RB in an A body guys will have to answer that for you.