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Original Message
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| RE: C8AE-H exhaust porting |
| By Gerry Proctor - 12/11/2002 1:01:30 PM; IP 207.133.188.254 |
Removing material from the exhaust port's floor will not help and may hurt flow. You always want to raise the port roof and exit as much as possible.
Yes you can install larger exhaust valves. Most go to the 428 CJ/406 sized 1.66. Just remember that you have to blend the bowl for it to do any good.
Header fit is always a crap shoot when dealing with the 8-14-16 bolt pattern. It really gets complicated when you are installing headers in the unibody (Mustang/Fairlane) chassis. The 14-bolt head is missing the lower two inner bolts and the upper two inner bolt holes are lower than most header flanges. The eight and 16-bolt vertical bolts are in the same location but headers for the 16-bolt CJ pattern don't fit well with the smogger heads (C8AE-H). I know you intend on drilling the holes in the proper location but that doesn't ensure a good header seal. By the way, 16-bolt heads are CJ heads and are cast C8OE-6090-N. You will get the best header fit if you really have a set of CJ heads since the port is in the right location for most headers. |
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This thread, so far...
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