It depends on the manufature of the header I have come across that issue with both small and big block headers. Solution turn the bolt around so the nut is on the outside. Obviously it will have to be done before the header.
You can still change springs and bushings with it that way just take a little more patience.
being on the eastern edge of the central time zone sucks...it gets dark WAY to early.
Originally Posted by jeepbrattt
An occasional jello or vasoline wrestling match isn't out of the question either.