426 Hemi exhaust port dimensions?

[Victorslik]

Long shot but hoping somebody can give some 426 Hemi exhaust dimensions. These will be used for modifying a set off TTi hemi headers to fit a Dodge 325 hemi into an "A" body. The A & B dimensions indicated on the attached image. Note that the A dimension is to the horizontal center line of the ports not the widest dimension between flanges. That would be helpful as well if anybody knows it, but if that is what is being given please say so. Thinking the widest dimension would be approx 1.5" wider than the center line measures. Thanks, Slik.

 

[LO23M8B]

Are you talking about a 325 c.i. Hemi? Do you need dimensions for a 325 or a 426?

 

[Victorslik]

I'm asking for 426 as I have the fresh 325 to measure off of. I have TTi 426 headers and have to mod them to fit the 325. Too oddball of a swap for anybody to make direct fit headers for 1st gen Dodge Hemi in "A" body. I tried using Hotheads block huggers but they ran right into the steering gear and torsion bars. A fellow on the HAMB provided a fairly accurate(I think) 426 drawing and I used it to "scale" and came up with dimensions of 56.375* from vert c/l or 112.875* between flanges & 22.273" between flange c/l's. If anybody has any numbers they think might be closer I'm all ears. Thanks.

 

[CRUZE 418]

Did not know that Chrysler made a 325 Hemi. Can't you use a 426 exhaust gasket?

 

[Mopar head]

Probably better off going custom build using stainless, if you have pipefitting and welding skillz.