Thread: How Do I make sure its a 440?

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Hey all, thanks for reading. I just bought a 68 Chrysler 300 in pretty decent shape and I want to know how I can make for certain that its the original 440, ive heard about casting numbers? Also I'm planning on putting a new carb (the old ones not even complete) and wanted some suggestions on what would work the best.

To make sure its a 440, check the pad the water pump sticks out of, below the head. A 440 is a raised block, this pad will be below the head gasket surface. A 383 low-block has this pad at the same height as head surface, so it's machined. A 383 stamp will be found on it, too, I believe. A 440 will have a 440 stamp on the pad ahead of the intake, on the valley surface. As far as it being "THE"440, that came in the car, you'll have to find the engine serial #. Can't help ya there, I never was one to worry about such niceties.

My 440's worked best with the stock Carter carbs, AVS or AFB. Edelbrock's are modernised AFB's, they'll probably work great too.

hey thanks for the info, from here and a couple of other sites i was able to find the numbers on the block. My previous notions proved correct. its most defenately a 440, and the original. thanks a ton for replying and helping me with my project.