Headers

[HEMIMANN]

So, does anybody make proper long tube headers for the 6.4?

Yes - American Racing Headers (ARH). Again - be informed they are illegal for street use, even with cats.

If your state doesn't care or test or document, then you can use.

 

[HEMIMANN]

ARH /American Racing Headers

Oops - beat me too it.

 

[Rlaf75]

The offset is the pain to install is higher with the shorties, it's not fun.

Ok but there's still less parts to buy therfore it's still cheaper. I've done them with a buddy of mine on his truck. The equal length twisted pipes make it a little bit of a pain but it's still not crazy

 

[joesstripclub]

Same experience with my ebay powergo shorties. I did figure out how to seal at the collector though! I used permatex exhaust sealant which is a paste that hardens like a rock after its heated for 10 min from the exhaust.

Did you use the sealant or the putty? I still need to try to seal up my collectors at some point.

 

[daCelt]

Back in 2015, when I had 3 broken exh manifold bolts, I got a quote from the dealer for $1100. I decided to look for headers and do the job myself. Believe it or not, I lucked out and found a set of BBK (4014) shorties on Amazon for $68. I thought it was a misprint but they showed up never installed. They were an "open box" but all the parts showed up so I did the job of pulling the busted exh bolts and hanging the headers. While I was down there, I also installed a Mufflex drop-in replacement muffler (DOD14M) that was labeled as "aggressive." I can't say what of the exhaust tone was attributed to the headers or the muffler but it worked out and cheap too! (other than the 12hrs it took to get 3 broken bolts out!)

Oh, all this to say, after that time, I went through emissions testing for 5 years in TN (cats are still on) and never had any trouble passing.

 

[Dusty]

I heard that the US govt was cracking down on this kind of thing. I don't follow it all that extensively, I'd like to replace my manifolds with either shortys or long tubes once they inevitably brake a bolt. Even the article mentions shortys are legal so hence my question.

Keep in mind that the article is dated 2021. Things can change.

Regards,
Dusty
2019 Ram 1500 Billet Silver Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33-gallon fuel tank, factory dual exhaust, 18” wheels. Build date: 3 June 2018. Now at 83728 miles

 

[CanuckRam1313]

My JBA shorty's were a real PITA to install on the drivers side!
The passenger side, not so much. Only really had to lift up and relocate the coolant bypass hoses out of the way of the shorty's to ensure no rubbing and melting...lol
As for sealing up; took the advice of a gifted MOPAR tech I know that specializes in heavy performance upgrades for all makes and models of MOPAR's...
"get top quality orange RTV and lay thick, heavy beads of it on the collectors where the cats bolt up to the shorty headers so it oozes out".
He said if this is done right and let to set and harden with a hoist warm in process... there shouldn't be leaks.
I've put almost 8,000km's on my new headers, and quiet as a church mouse, in terms of no exhaust leaks.
Now, at WOT with my current set up, including a FastMan TB and good RL 5W30 oil.... she howl's like a happy & healthy HEMI should "Our Lady of Blessed Acceleration, Don't Fail Us Now"!

 

[Highway]

My JBA shorty's were a real PITA to install on the drivers side!
The passenger side, not so much. Only really had to lift up and relocate the coolant bypass hoses out of the way of the shorty's to ensure no rubbing and melting...lol
As for sealing up; took the advice of a gifted MOPAR tech I know that specializes in heavy performance upgrades for all makes and models of MOPAR's...
"get top quality orange RTV and lay thick, heavy beads of it on the collectors where the cats bolt up to the shorty headers so it oozes out".
He said if this is done right and let to set and harden with a hoist warm in process... there shouldn't be leaks.
I've put almost 8,000km's on my new headers, and quiet as a church mouse, in terms of no exhaust leaks.
Now, at WOT with my current set up, including a FastMan TB and good RL 5W30 oil.... she howl's like a happy & healthy HEMI should "Our Lady of Blessed Acceleration, Don't Fail Us Now"!

Same way i did my JBA shorties ,rimflex gaskets and copper rtv at the collectors and no leaks.

 

[blackbetty14]

Did you use the sealant or the putty? I still need to try to seal up my collectors at some point.

 

[blackbetty14]

Same way i did my JBA shorties ,rimflex gaskets and copper rtv at the collectors and no leaks.

I tried the orange RTV and it turned to powder and didn't seal. The orange stuff isn't rated to much more than 700*F intermittent or 500*F continuous. The exhaust especially before the CATs will get a good bit hotter than that constant.