I was just finishing up the threaded insert repairs to my A.I.R holes and noticed that the exhaust pipe studs are different from the left to right manifolds. The left manifold has a hex on the tip so that a socket could be used for installing or removing each stud but the right manifold doesn't have this feature. It has an unthreaded portion to make starting the nut easier but without the hex. I'm just curious if this was the way they came or if one side was replaced at one time.
Greg Linton
#45455
Greg Linton
#45455
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