You are looking at a 1969 Hemi 426. I removed this from a 1970 Cuda. This has the dual 4 bbl intake.
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I had this motor running before removal last year and it ran without any problems, smoke, knocks, unusual noises, etc. It is a good strong motor. Unfortunately, we do not know much more than that about it.
I had the Cuda come in and in the midst of restoring it, the owner had a stroke and was not able to continue on with the restoration. I have since acquired the car and all of it's parts. When the car came in it was a running and driving car. The motor ran so strong and passed all of the compression and leakdown tests with flying colors so it was not going to be rebuilt. In looking at the engine both from the top and underside, it is apparent it was rebuilt in the recent past and does not have a lot of miles on it.
I tried finding the VIN for the motor but it does not appear to have one.