Quote:
Originally Posted by OG68
Yes it is. That's a stop for the exhaust manifold heat riser valve. The right side manifold with the valve was replaced with a regular manifold in production sometime in Mar-Apr 68.
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In all my years with all the different Pontiacs I have never seen one of those before .
Very Cool !
64-67 had the flappers too , but no stop brackets like that.
Must have started with the new 68 models.