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After a bit of shopping around, I found out that fel-pro's head gasket (part number 26157PT) for the 4.7 is the same part number for 2000-2008 dakota 4.7's.

This is looking promising, if the headgaskets are the same I don't see why the new heads wouldn't fit... but getting them to fit and making it run are two different things.
The 2008+ 4.7 pistons are DRASTICALLY different for the 2008s revised combustion chamber design. The 08 pistons look like they will be REQUIRED to run the 08 heads. The 2008 heads also have a vastly revised exhaust flange and ports.
 

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that because the compression is higher on the 08+ block

and mr intelligent....obviously if the ports and bolt pattern are different, an 07 and older header wont fit...but i say its not a issue to get the head to work on the 07 and older 4.7
Well the piston is still the same depth in the block. The CHAMBER is VASTLY different in the 08 head and It looks as if the actual 99-07 pistons will hit the 08 cylinder head in places.
 

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looks and does are 2 different things...and custom pistons arent that big of a deal. post these pics when you get them from your computer.
Well looks and does are pretty much a certainty... Remember the 08 head has the 2nd squish area and 2nd spark plug. Thats what the relief looks like it clears. Its shallower in that area than a normal 4.7 piston.
 

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Cmon Michael, this guy knows his stuff...he saw the inside of his last motor after he blew it up.
And according to his posts on the chevy forums he says he has put an 08 motor in his truck which is why it was so fast....he had the videos to prove it.
Ok, he's full of shit, claimed the videos of a hemi on nitrous were him, never did the swap he bragged about to the chevy forum....and probably none of the other stuff he has claimed on the various forums.

Too bad he's spreading his idiocy here now too, guess the chevy forum and dt got tired of him....so on to the next one.
You are wrong on the swap...I have done one....About to do one again.
 

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Swapping out tone rings wouldn't be a problem as I have some spare ones from a 01.

I am curious if an 08 motor could be run off of a 01 computer, switching from an 01 computer to an 03+ computer would probably require rewiring everything like josh did on his hemi swap since the 03+ have four plugs and the other have three. I really don't see why it wouldn't work, it is the same basic motor, I'm sure some connectors would need to be changed and a different tune but I don't see why it wouldn't work.

I am not surprised that the pistons have recesses in them with the upped compression ratio and different head design, it could still be possible that they will fit on a stock older motor. For me personally I would more then likely be changing pistons if I ever tried putting 08 heads on a older motor anyway.
03+ PCM will run the 08 engine the way its sits. Just need one of the airram throttle body adapter plate sets and the right tune.
 

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To each their own, I still am a firm believer in the 2008+ heads will not work with the 2007 and prior pistons. I believe you need to run the 2008 pistons, which will require rebalancing the rotating assembly. At that point, you might as well swap to the whole 2008 engine.

As far as recomeending mods, my truck eventually hit a 15.85 @ 86.38, with a 2.46s 60' time. Thats not bad in a 5,500+ truck with 3.55s and 32" tall tires. Considering the long block was as it left Chrysler and I did not even have shorty headers on the truck. Still had the stock Clutch fan on it as well.

My Chevy 305 pulled a 5,600 lbs G-Van to a 14.8 @ 93 on a 2.18s 60' despite 3.08 gears and the stock 1,600 rpm stall torque converter, on its shorter 28.5" tall tire.

When you run things hard you will occasionally break things. Speaking of which, I haven't been on the board much, because I am building ANOTHER 350ish HP 305 to replace a 350 that spun a rod bearing in my brothers truck.
 

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