Copper crush gasket - can have a larger raised area near the center of the tube to help allow for imperfections in the mating surfaces.
The OEM Squarebird exhaust manifold has a flat exhaust mating surface - didn't change to the "donut" type until later.... '61?
Hopefully the shop used a flat style exhaust connector rather than a donut style or that may be the problem.
Most likely just not aligned perfectly flat or when(if) they welded the flange to the pipe they were off just a bit and it isn't matching up. Could be why they are saying they may need to make a new pipe for that side.
Squarebird style manifold (flat)
Later donut type manifold mating surface.
Mine will need exhaust soon - been lurking about on this thread seeing what happens - had planned on using a local shop too.
The OEM Squarebird exhaust manifold has a flat exhaust mating surface - didn't change to the "donut" type until later.... '61?
Hopefully the shop used a flat style exhaust connector rather than a donut style or that may be the problem.
Most likely just not aligned perfectly flat or when(if) they welded the flange to the pipe they were off just a bit and it isn't matching up. Could be why they are saying they may need to make a new pipe for that side.
Squarebird style manifold (flat)
Later donut type manifold mating surface.
Mine will need exhaust soon - been lurking about on this thread seeing what happens - had planned on using a local shop too.
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