i know its a long rod, but as for the bore and stroke and what the rods/pistons are…. Rebello keeps those to himself. They are not publicized as to avoid other making the same engines and Dave no longer having a business. He did some head work last year, valve job, etc and stating that it is a head he did. Port and polish etc, and that the cam in there is the biggest they make for that motor. Thats about all i got out of him.