This 396/325 L35 engine is lor sale on Team Camarohttp://www.camaros.net/classifieds/showproduct.php?product=21387&cat=all
I have a similar car with an L35 automatic and the engine that was assembled on the same date 11-30-1968 and the VIN is about 600 higher. It is odd that the block casting dates are 28 days apart.
There is a good chance these cars were born on the same day and with similar features they could be twins. ;DIf this car is still alive and you own it or know where it is, please contact me.