Of all the ass-backward, goofy ideas on here, this tops the List. If a 5.7 cam and headers worked better on a 6.4 don't you think Dodge would have done that by now?!?!?

I can see why that shop of yours is failing: You clearly have no idea what you're doing, time to put the wrenches down.

I knew from the start exactly why you used a 5.7 cam, more low end torque which you want in a truck.

Why not just go with manifolds for a build like that?
....and please forgive me if that's a dumb question.

The factory manifolds flow like crap on the trucks. Also long tube headers provide resonance tuning that evacuates the cylinders better so you can fill them with more air and fuel instead of leftover exhaust so I can make more TQ.

After working with Chryslers engineers personally I can tell you that you’re giving them far more credit than they deserve.

Do you always have to be a pr*ck when anyone doesn’t see things your way???

What he’s doing will give it more low end torque but sacrifice some top end.
It’s been proven for years.

Yeah. You’re still the Moparts Proctologist.

I’m thinking you have a bladder problem too since you piss on everything you can.

Mind your own business, Parrot. You contribute nothing of value on here.

This is between Me and HRD and the Smart-Ass knows why.....

So I am building another 6.4 for towing in my 2015 ram and am looking for headers... are there any that are affordable yet for these things? If not why in the world is it taking so long?

Before anyone asks it is originally a 5.7 ram 2500 4X4 long bed 4 door 3.73 gears. A friend needed the engine so I pulled it and sold it to him. The engine I'm building will basically be a complete 6.4SRT8 long block butt with a 5.7 cam, 6.4BGE intake, 10.9 compression, my secret valve job and a tiny bit of port cleanup in the heads and intake and a couple secret custom parts I am trying to get a machine shop to build in mass. I just can justify $2000 headers.

No affordable headers yet. If anyone has worked on a hemi and a 3/4 ton 4x4 they are a nightmare (shock towers/spring mounts are in the way of everything). I thought headers on an ebody were bad...

For my 18 PW I bought AFE headers for the 6.4 because I still have all the emissions on it and I needed the EGR port. I know shorty's aren't the best but I picked up a ton of mid range. I'd say about 1.5 mpg+ improvement and a fair amount of power. The factory manifolds are absolute trash on the back cylinders.

I would never buy an AFE exhaust product again. I've used their filters in a lot of products and they work great. I have had cracks on both sides and the driver's side just warped about 1/4 inch from side to side.

If you don't have the egr I know you could get different shorties in there. If you use the factory exhaust gaskets cut the heat shield off. You'll thank me later if you ever have to pull them in the truck.

There was a Chinese company making long tubes but they have vanished. Looks ARE are the only long tubes and for 2k plus I couldn't do it either.

Mind your own business, Parrot. You contribute nothing of value on here.

This is between Me and HRD and the Smart-Ass knows why.....

I put a set on a customers truck when doing his cam and it woke it up in all the powerband, I just can't afford $2000+ myself for a set. They weren't hard with the heads off. I've actually done a ton of broken bolts and gaskets and yes it is a pain but I do them so often now it is just all part of the routine and I never felt compelled to cut off the heat shield.


Since my truck was originally a 5.7 it has zero EGR garbage, no plug ins, no coolant to block, no extra sensors... I much prefer starting with a 5.7 truck for this reason. Also the ECU is out of the way.



I have run shorties on several other engines over the years and never felt enough difference to justify the cost and hassle of them. I'm either going long tube or keeping it stock till I can afford something else. I am hoping to have it up and running today so probably gonna stay stock exhaust for now. The only hold up will be how long it takes me to make a video of the special parts I made to show a hemi parts supplier to see if he's interested in making them for me.

I'm sure I could find them online but you may know off the top.of your head, what are the cam specs for a 5.7 hemi truck motor vs the 6.4 BGE truck (both auto)?