Block casting number 3932386 question

[bollybib]

Originally Posted by ChevLoRay

...With the September, '68 dates on the seat belts, and your statement that the engine was assembled on September 24, for the '69 model year, I am convinced that my truck was built in September of '68.

There is a difference of about 4000 vehicles between us based on using the last five digits of our serial numbers. 16458-12417=4041. Maybe the separation is about a month or so. Without production figures, it's hard to pin it down exactly.

Later in the day 6/29/11: I went back and read more closely and the I19 on your motor looks like a '69 casting to me (Sep 1, 1969) like 67 C-30 and bruceman said. Since I don't have all your numbers what I posted before may be in error. "Based on our casting and stamped codes, it looks like yours rolled out of the St. Louis factory slightly before mine".