I have a 68 camaro build in the last week of March 1968. The block casting is 3916323. My question is if the car was a late March build what month would the block be typicaly. Or should it have a late 1967 block? Any one have an idea?

My guess, late Feb., very early Mar.

------------------
67 Camaro SS Conv.
70 Challenger R/T Conv.