340/mag360 exhaust manifolds
My manifolds sell for $325/pair, plus shipping. You get one OEM 340 driver's manifold and one 360 magnum passenger's manifold. I buy the 360 magnum manifolds and "machine" them to get the exhaust port to match the 340 driver (a little over 2 1/4"). These manifolds fit easily in any 67 up A body. I get the manifolds sand blasted, checked for any cracks/breaks/issues, prime with high heat paint, top coat with high heat paint then cure at 180 degrees for 12 hours. They are shipped "insured" just in case there's any damage during shipping (has never happened). I also sell the 120 degree flat flared 340 "mandrel bent" down pipe (with flange adapter) as well as the bell flared 360 down pipe (with flange adapter). I started making the 120 degree 340 down pipe because most muffler shops can't make mandrel bends and they usually crush the pipe to get it to clear the torsion bar on the driver's side. It doesn't do any good to have a 2 1/4" manifold exhaust port if your going to choke it down with a poorly made down pipe. I also sell the "special" cone washers that the factory used to keep from breaking the manifold ears.
I also sell the 70s 340 passenger's manifold with the 1 7/8" exhaust port (last 2 pics) as well as the "LARGE HOLE" 340 OEM passengers manifold (tri Y).
The 5th pic shows the difference between a 318 manifold and a "machined" 360 magnum manifold.
Treblig
My manifolds sell for $325/pair, plus shipping. You get one OEM 340 driver's manifold and one 360 magnum passenger's manifold. I buy the 360 magnum manifolds and "machine" them to get the exhaust port to match the 340 driver (a little over 2 1/4"). These manifolds fit easily in any 67 up A body. I get the manifolds sand blasted, checked for any cracks/breaks/issues, prime with high heat paint, top coat with high heat paint then cure at 180 degrees for 12 hours. They are shipped "insured" just in case there's any damage during shipping (has never happened). I also sell the 120 degree flat flared 340 "mandrel bent" down pipe (with flange adapter) as well as the bell flared 360 down pipe (with flange adapter). I started making the 120 degree 340 down pipe because most muffler shops can't make mandrel bends and they usually crush the pipe to get it to clear the torsion bar on the driver's side. It doesn't do any good to have a 2 1/4" manifold exhaust port if your going to choke it down with a poorly made down pipe. I also sell the "special" cone washers that the factory used to keep from breaking the manifold ears.
I also sell the 70s 340 passenger's manifold with the 1 7/8" exhaust port (last 2 pics) as well as the "LARGE HOLE" 340 OEM passengers manifold (tri Y).
The 5th pic shows the difference between a 318 manifold and a "machined" 360 magnum manifold.
Treblig