In a previous thread, http://www.camaros.org/forum/index.php?topic=3635.0
, water neck #397212(6,8 or 9) was discussed. Jerry answered the post that the water neck (and part number) was a generic replacement.
I came across a water neck today in a salvage yard that was in a box with other water necks. This particular yard has a several older cars. The water neck has part number 3958002 clearly cast into the base of the water neck. Also, it was painted Chevy orange, and being that I found it in a salvage yard, probably original paint?.
Anyone have a listing as to the usage for #3958002?
In appearance, it looks just like the one pictured in the thread mentioned above. Aluminum water neck with no lobe and hole on the backside for a carb return spring.