63 Tempest headers
I found a set of headers that fit a Tempest/Lemans chassis like they were made for it. The headers are 3 tube with a 3 1/2" collector. The end pipes are 3/4" and the center pipe is 2". They can be installed without raising the engine, denting the pipes, notching the cross member, or even cussing! The oil filter has to be removed, (maybe the starter-don't know for sure). There is adequate ground clearance and room the flange bolts.
Pictures are attached. The brand and part number are unknown because I bought them at a swap meet. They could be Cyclone, Blackjack, or Hedman , as all three companys still sell 3 tube headers for Pontiacs. Check the pictures.
The 3 tube headers are ok for a street car, not best for drag racing. Jim Hand tested the 3 vs. 4 tube headers and found the 4 tubes about a second faster in the qtr. mile, but the 3 tubes were similar in power production to the stock ram air manifolds.
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