Quote:

318/440 crank flange is the same. Most 440's are neutral balance. 70-2 HP & 6pk engines had a special balance with a steel crank. Starting late in 72 most 440's got the cast crank which is a special external balance with the exception being some of the truck and 4-speed engines.

Dan



It's a 1979 440 out of a motor home. Would it be internally or externally balanced?? How do I tell??