I have a 66 "C" code hardtop that I'm putting a four barrel onto. Though the car calls for a two barrel, I want to keep the numbers and date codes on the new parts correct. By the way, the car was made in San Jose, so it has the Termactor system on it. I have found a '66 manifold with a casting code of C6OE-9425-B and a date stamp of 6J19 which translates to Sept. 19th 1966. My question is this. Shouldn't a September date code be for the following production year? It seems really late in the year to be casting large engine parts for a year that is done. The '67s should have been in production then. Since my car has an Oct. 11th 1965 sell date, (and I know this because my father bought the car new off of a show room floor in '65) Does that mean I need a date stamp of 5J19?
Paul