Quote:
Originally Posted by 2manyT/A'S
The headpipes were from a mid December build 72 W66 with TH 400.
Perhaps the stick cars got different plumbing? (need to check the parts book)
|
2many, your headpipes look just like mine. I'll attach a not-so-great photo but you'll get the idea. Pretty flat in spots. The set on my car were purchased from GM parts and installed on my car about 1980 or '81. I had them out again about ten years ago, sandblasted and painted with high temp paint. The headpipes go back to about the rear footwell. There is a junction and then another pair go up and over the axle. If memory serves only the headpipes were unique to RA manifold cars. No difference between automatic and manual trans. The over-the-axle pipes, muffler and tailpipes were common with all dual exhaust Firebirds of the era (except SD which had the extra resonators in the forward part of the over-the-axle pipes).