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None this answer my questions. Its going off in a totally different direction. My 383 is all ready, that's the block I'm building. I'm either going to put it back stock stroke or 440 stroke. Who out there has a 431-438?





I believe Mopar Muscle did a 431 a few years back with Eddy RPM heads. I believe its the one they put in a 65 Dodge Coronet and ran 11.70's with it. Ron