Have been working on installing the aftermarket header on my '66 roadster
today.
Took the previous 1 5/8" 4-2-1 header off because of a bad gasket leak at #1
cylinder at the head.
Have to say the welds on the aftermarket header at the head flange look great.
Nice and smooth, everything lines up well, bolts right on.
Get down to the collector tho, and everything goes haywire!
It seems to be about 3/4" to 1" too short, so that the flex pipe has to be
bent upward to meet it.
Then the collector is angled towards the block and down by 15 to 20 degrees.
The flex pipe will be rubbing up against the tranny/flexplate.
I ground a bunch of welding "slag" from the inside of the collector to free up
a bit of exhaust flow.
The pipes sit almost tight to the block/oilpan heating those parts and the
gasket unnessecarily. There is room for it to be easily 1/2" away from the
engine.
I don't know whether I got an especially bad example or not, but it's easy to
see why these headers never got an endorsement from the roadster community.
Now to be fair this header is probably 5 years old, but never installed. I
don't know if all or any of these issues have been dealt with in any updated
headers. But what a PITA to hook an exhaust pipe to!!
Anyone having similar problems?
Daryl
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