identifying an engine

[mr.slidewayz]

i know its a 327 .... what i dont know is what the stampings mean on the front of the block . is anyone on here good at this type of stuff ? the stamp starts out with a weird letter/number . it's either a F or a E ( possibly even an odd looking number 1) then 0125HCH . its on a 3858174 block . i'm sure that is a 327 . but not sure if it has the large or small journal crank . what can you guys tell me ?

[joedoozer]

Looks like the motor was built in the Flint plant on January 25th. HCH is a 1966 275 hp 327 with a 4bbl Holley Carb. As for the crank I thought all the early 327's (up to 1967) were small journal.