Re: Anyone Using Stahl's Side Exhaust Headers? (James)
I guess I missed this thread on the first pass, but thought I'd offer my experience with Stahl. I bought Stahl headers for performance since their hardcore reputation was top's in that area for the older bigblock C3's. They are expensive, but I figured you get what you pay for. We'll see?
Installation was a major pain. I told them I had a 71, running a ZZ502 with stock aluminum heads, AC. They said it would be their first (502) but it was "not a problem". Maybe not for them but it was a different story for me. I had the headers in and out of the car 5 times getting them to clear the head bolts. They also made no allowance for the temp guage port. The passenger side header would not clear the AC box and I had to cut and install a blister in the box just to get the header in. (Note: once installed it clears by about 1/4".) Another complaint is accessability to the #3 spark plug. A colapsible (telescoping) socket is the only way to tighten the plug. Last, they do not clear the frame by the same amount on both sides of the car. One side is 1/2" lower than the other.
I hope they learned from all of my complaints and solved the fittment issues.