Not meant as a put down, how are you guys verifying that your truck originally had a 440?

Back when I had my '76 Club Cab and was looking for big block parts, saw a LOT of trucks with the 400 that the owner/seller insisted was a 440 (hint, 440's didn't come with 2bbls!).

Just curious.

My Club Cab had been a 360/auto Adventurer, I dropped in a (440) cop car drivetrain from a '77 Gran Fury using a wrecked '77 400/auto truck for parts.