[Whaler]

Thanks to all for the replies.......that site with all the locking fasteners is sure a nice idea.

Anti-sieze is awesome especially where aluminum is involved.
Heat cycles are another matter too. I have seen header bolts broken by such( and a little too much tightening too)

My flanges will be 3/8"SS x 1" bolts with a store bought locking nut. Will the nut lose much of its locking ability if taken on and off a couple times? I plan on putting on the pipes for break-in then take them off for the paint shop. If so, I will just use normal nuts for now and save the lockers for the final install.

Tim