Hello, I am looking for specific info on the motor in my engine that’s in the car I just purchased. I have a 67 Camaro with an engine in it cast # is 3970010, engine stamp on front pad are as follows. (Larger numbers) V0419CHC and (smaller numbers directly below larger numbers) 18L59111. I think it says V (flint plant) April 19th (0419) CHC 75-76 L82 Vette motor. What I can’t however figure out is the 18L59111 numbers(letter)