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You are not about to burst my bubble. There is no difference between a warrantee engine and a over the counter engine. It would be stamped just like his is to id the fact that it is a 72 engine with 72 internal parts. I would think it was sold as a complete engine. Those tags usually don't last long. My AAR had a tag stating that it was factory built short engine. I bought a 77 400 and a 440 short block but do not remember what was stamped on them. I will have to look the next time at the shop. A short block should not have all the complete stampings that a complete engine sold over the counter.

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I sincerely appreciate everyones response!
The VIN pad looks like original machining , just no numbers/letters. It was in my friend's 1970 Cuda when he bought the car 6 or 7 years ago. It ran fine , He had located an "F" 1970 440 block and had rebuilt to sixpack specs. The "G" motor I'm discussing has what appears as all Sixpack internals IE: Rods, notched pistons. It did have an aftermarket Engle 1-bolt camshaft in it. I have a 1970 "V"-code Challenger with a "J" 440 (1974 Block?) and was considering using this motor in my 1970"?" "F" 1970 440's are very pricey and the I would have to go completely through it to make it "correct". I guess I'm trying to ascertain that this is INDEED a 1971 Sixpack engine & what all those symbols represent. Do you think this is a good swap for my 1970 ? or........ Should I keep hunting for an "F" 1970 block? Thanks again to all responders!

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no matter what you install in your car it will NEVER be the original engine unless you find the original engine . too bad it doesn't have the original cam , it could POTENTIALLY be an original 6pk shortblock , but it's been molested so who knows now .

Since your car is missing it's original engine and this has no VIN pad you could use it and say it's a warranty replacement