Questions about a 2006 5.7

RON REAGLE said

I would watch the ENGINE MASTERS episode where they dyno the early version of the 5.7 against a newer (09 and up) what they call the "Eagle" version 5.7. If I were to spend the money doing a 5.7 swap I'd look for a later version which will gain you over 100 horsepower difference. The later versions have a much better head design flowing around 330 cfm.

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That episode is what pushed me in the direction of an Eagle G3 swap.

But it depends on what you want. A pre-Eagle will give you a sweet running motor that is as strong as a mildly built 360 and has plenty of potential with a cam swap. Guy on YouTube (No Bolts Left Behind) swapped a pre-Eagle 5.7 out of a Durango into a 70 Challenger, swapped the cam and used TTI headers and put down 371 RWHP. Pretty sure that is better than the 6.1 motors do stock. But even without the cam swap, the motor should put down something like 330 RWHP and run smooth while giving you decent mileage if that mattered to you.