Sadly nothing about any early Hemi is reasonable. Just the rebuild alone is expensive at a minimum 4 to 6 times as expensive as a SBC rebuild. I love these motors but they are not for anyone on a budget of any kind.

As to the power output of a 392 Chrysler, you are going to need a ton of more information for anyone to come up with anytype of a number. Stout Cam well just how stout and what are the numbers for this stout cam? How much compression? What Ignition? What headers? What pistons? This list goes on and on. There are severeal guys on here who with a little more information can give you a pretty good number.

392's in the past have produced a lot of different HP numbers. The 392 was only available for two years and only in the Chrysler in 1957 and 1958. In those two years Chrysler rated this engine from a low of 325 HP to a high of 390 HP depentant mostly on compression one at 9.5 and the other at 10 to 1. That and induction was the main seperater of power in those motors. The 392 also in highly modified state in some drag cars put out in excess of 2,500 to 3,000 HP. So I guess one answer for your question without further infirmation would be ------ Somewhere between 345 HP and 3,000 HP

RS