Trying to find out the first year that Mopar produced a 440 engine in a b body and to my understanding it was 1967 which also had the closed chambered heads(casting #915 ?). Looking at a 1967 coronet with a B440 stamp on the upper portion of the block. This would indicate 1966 to me. Maybe it's correct if the car is an early build ?? What says the Mopar community ?? Thanks for any input Bennoel
