6.4 intake manifold swap

[Ram7081]

6.4 truck intake manifold and 6.4 stock air box is installed. Currently running 5.7 injectors with spacers. Now need to get a tune so I can swap in the 6.4 injectors and delete mds. May just have to buy a pcm from diablo... wanted to just unlock mine but may have to go the easy route. Can’t let my truck be down anytime soon. For anyone interested the 5.7 fuel rail does fit but needs a new hose for the crossover. Was a 5/16 high pressure fuel and transmission line. Also, drilled and tapped the 6.4 manifold to run my catch can. There is no way stock on the 6.4 manifold to run a catch can. If you look in the pictures you can see I drilled the egr blockoff plate and install a 1/2” barbed 90° fitting with a 1/4npt thread into the blockoff plate. The pvc side I drilled into the stock pcv housing and tapped it for another 1/2” barbed straight fitting with a 1/4” npt thread and just plug the stock vacuum port into the manifold so it only sucks through the catch can. Either jb weld or another form of putty should be good as long as it’ll harden and adhere to plastic. Posted in my build thread as well. This is with plans to install a aev snorkel in the future.

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Been trying to find the hose that goes from intake tube to manifold. I can't find one like yours. Please post link or part #.
Appreciate it!

 

[DILLIGAF]

Im almost ready for the swap, Just waiting on my silicone elbow so I can reuse my 5.7 CAI .

I also got to swap the fuel rails around and put new seals on the injectors.

 

[seabrook]

i still am amazed at the HP yield from this mod!

 

[DILLIGAF]

i still am amazed at the HP yield from this mod!

The amazing part is to actually find a good deal on a 6.4L intake. Only took me 14 months ...lol...

 

[turkeybird56]

Yea... I had stock Goodyear’s going up an on ramp in pouring rain. Not even accelerating hard since it was raining. Ended up going sideways up the ramp. Thankfully I maintained control up the ramp. That was the last straw for those stock Goodyear’s. Scared me half to death.

Stock SRA's, OMFG. I drove over to my Neighbors house, had rained earlier. He has dirt and gravel and grass area driveway. The only way I could get moving was in 4 wheel and and heavier gas pedal. Needless to say, may be why I have Falkens on truck now. I also, when hit with rain deluges here, have been sideways and other more than a couple of times on TX roads, especially trying to get up on the Interstate and U end up doing a 360 when U punch it.

 

[DILLIGAF]

Made a little stainless sleeve to cover the hole. Its setting right now with 3M Weld Epoxy .

Used some Dupont Prep-Sol on the plastic and used a file to ruff it up to help with adhesion.

 

[LoadedExpressRam]

Im almost ready for the swap, Just waiting on my silicone elbow so I can reuse my 5.7 CAI .

I also got to swap the fuel rails around and put new seals on the injectors.

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Which intake exactly? I really want this mod but I like my vararam too much but if you found a way to have both pass it on brother.

 

[DILLIGAF]

Just got my new Tune from FRP

Just finished installing new Seals on the 6.4 Injectors.

******* snowing today FML....

 

[Lee Peterson]

What are all the brass fittings for? Catch can?

 

[Wild one]

Just got my new Tune from FRP

Just finished installing new Seals on the 6.4 Injectors.

******* snowing today FML....

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Damn you were busy with a toothbrush by the looks of it after cleaning,lol. I know Steven,keeping things clean isn't really one thing he's good at,lol. Looks good Ian,did you get it installed today?

 

[DILLIGAF]

Hopefully tommorow. Its calling for +11

Just ordered the Specter Performance 3996 today as well. One less hose to run is always a plus !

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[DILLIGAF]

Had a busy day, Figured out what I needed for the air intake as well as extended the wires.

To bad I had to put the 5.7 Intake back on, Not a single parts store in this ******** had what I needed.

Had to order a AEM 21-2047DK 3.5" Inlet x 7" Element Dryflow Air Filter from Amazon as the MOPAR one wont work. Im not using the original 4" piping and I dont really want to Frankenstein anything either.

My AC lines are also super tight against my TB, Will have to bend them back a wee bit. Brute force and ignorance should fix that. lol

 

[DILLIGAF]

Cut some brackets on the plasma table this morning for my new intake. and fabbed up a few parts for it as well. ( Yes I know they have ones that fit , But doing it for free is more my style ) and I really dont feel like re-routing my winch controller box , Battery tender and catch can either !

Amazon shipped my crap this morning. Should be able to put it back in next Saturday.

Love this hammered black paint, I literally use it on everything I make now... lol...

 

[DILLIGAF]

Finally done ! **** that V6 Fan is loud... lol... https://youtu.be/__uIP_Fw4Zc

Is it just me or are the 6.4L injectors Louder ?

 

[13RamR/T]

I was debating running 2 cans. I’ve decided I’m going to run a Second restrictor valve in the fresh air side to prevent reverse flow. It’s a 5/8” tube size on the fresh air side.

I know this is a couple years later, but do you have a part number for this 2nd restrictor valve you installed? I have almost everything onhand to mod my 6.4 intake; Both 1/4-18 NPT to 1/2" barb brass fittings (one straight, one 90 degree from Amazon), a 1/4-18 NPT tap, JB Plastic Weld, and a BT Catch Can kit that is already mounted to the front of the passenger side intake head. The PCV solution is the last thing I want to have before I drill the manifold.

 

[crazykid1994]

I know this is a couple years later, but do you have a part number for this 2nd restrictor valve you installed? I have almost everything onhand to mod my 6.4 intake; Both 1/4-18 NPT to 1/2" barb brass fittings (one straight, one 90 degree from Amazon), a 1/4-18 NPT tap, JB Plastic Weld, and a BT Catch Can kit that is already mounted to the front of the passenger side intake head. The PCV solution is the last thing I want to have before I drill the manifold.

I do not but I did use the factory pcv valve. Removing the restrictor from the factory pcv vslve caused a vacuum leak scenario so I had to reinstall an operation pcv valve. The second restrictor I installed is basically useless since reinstalling an operational pcv valve since they do the same thing

 

[13RamR/T]

I do not but I did use the factory pcv valve. Removing the restrictor from the factory pcv vslve caused a vacuum leak scenario so I had to reinstall an operation pcv valve. The second restrictor I installed is basically useless since reinstalling an operational pcv valve since they do the same thing

So let my noob mind ensure I got this right, for this CC setup to work as intended, I'll still block off the square opening with JB PlasticWeld, make it pretty and sealed good, then simply reuse the factory 6.4 PCV?

 

[crazykid1994]

So let my noob mind ensure I got this right, for this CC setup to work as intended, I'll still block off the square opening with JB PlasticWeld, make it pretty and sealed good, then simply reuse the factory 6.4 PCV?

Absolutely correct. Make sure to point the arrow in the direction of the barb. It fits both ways but since you are blocking off the factory port you will want the pcv valve turned 180°

 

[DILLIGAF]

Block off plates straight from the dealer

68478018AD - MOPAR Plate. Egr block off. Ws apache egr block | Factory Chrysler Parts, Bartow FL

Genuine MOPAR Part # 68478018AD (68478018AC, 68478018AB) - Plate. Egr block off. Ws apache egr block off plate. Fits Grand Wagoneer. Ships from Factory Chrysler Parts, Bartow FL

www.factorychryslerparts.com

 

[DILLIGAF]

Just a little info to pass along. You no longer need to waste money on a truck 6.4L intake.

The 6.4 Grand Wagoner intake is 1/3 of the price and is the same.

High Performance Rams | Got the 6.4 wagoneer intake on tonight just working on some data logging for some tune revisions from BFNY Performance | Facebook

Got the 6.4 wagoneer intake on tonight just working on some data logging for some tune revisions from BFNY Performance. Used an AF Dynamic cold air intake off ebay which is actually really nice...

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