Re: Flat 6
The center and right pictures on the top row and the center picture on the bottom row are the 226 that is the original engine in my avatar. I rebuilt it in 1999 and it has 40,000+ miles on it. The exhaust on this one is a split original manifold
The rest of the pictures are the 254 that I am planning for Bonneville. I have not started it yet but soon.
Unfortunately, I did not take any pictures during modification of the header. I started with a Classic Inlines header for a 60's Falcon or Mustang 200 cu. in. I cut the flange off flush, heat adjusted the port spacing as described earlier. The 200 outlet is at a 30 degree or so from vertical facing down. The flat 6 outlet is vertical. I cut six 30 degree radius sections from some 1-1/4" mandrel bend tubing and pieced them in between the revised header and an exhaust/intake flanges from Victory Speed Equipment. We welded it up solid and I spent a few hours with a Dremel smoothing everything out. I built a single 4 bbl. intake manifold off the same flanges. The flanges are plasma cut in the same pattern as the intake/exhaust gaskets.
Sorry for the quality of the pictures. They were done in a closed garage, after dark, with a telephone.
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