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Header Recommendation for a 340 #2650115
04/29/19 09:04 AM
04/29/19 09:04 AM
Joined: Jan 2003
Posts: 2,326
Addison Twp, Mi.
RobG Offline OP
top fuel
RobG  Offline OP
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Addison Twp, Mi.
I have a stock 340 TA motor that I am investigating adding headers on. What are you running on your small block motor and why do you like them?


I am not rich...but I get off my ass everyday to make sure I am not broke!

Can we get the Mexican cartels to help us with our supply chain issues? They don't seem to have any trouble getting stuff from one place to another.
Re: Header Recommendation for a 340 [Re: RobG] #2650156
04/29/19 10:36 AM
04/29/19 10:36 AM
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Posts: 350
Mequon, WI
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gzig5 Offline
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Mequon, WI
I've got Heddman and don't like them. They are they style that hang low and go under the drag link. Many of the cheaper ones use this layout.

The hot ticket are supposed to be TTI or Doug's. These fit well but are more expensive.

I'll be going to one of these when I rebuild the motor.

Re: Header Recommendation for a 340 [Re: gzig5] #2650182
04/29/19 12:07 PM
04/29/19 12:07 PM
Joined: Jul 2003
Posts: 4,741
Holland MI Ottawa
2
2boltmain Offline
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2boltmain  Offline
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Holland MI Ottawa
Yes what gzig5 said. Headers that are inexpensive hang low and are made from tin cans. Headers that don't hang low start out at expensive and ascend to REALLY expensive but are made from durable steel with thick mating flanges...AND THEY DONT HANG LOW. Thorely headers in raw steel I believe are about $550? The coatings add to that of course.


Keep old mopars alive.
Re: Header Recommendation for a 340 [Re: 2boltmain] #2650202
04/29/19 12:55 PM
04/29/19 12:55 PM
Joined: Oct 2004
Posts: 2,799
Connecticut
FurryStump Offline
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FurryStump  Offline
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Connecticut
The stock 340 exhaust manifolds are pretty good don’t rust out and don’t hang low. On a stock motor, headers are worth hp, but probably not a whole bunch. The more serious the motor the more improvement you would probably see. I have seen low 11’s through those manifolds.


best of 11.39 at 117 mph 1.60 60’. 68 340 S Barracuda Fastback F.A.S.T [IMG]http://i67.tinypic.com/2mnnnnt.jpg[/IMG]
Re: Header Recommendation for a 340 [Re: RobG] #2650285
04/29/19 05:17 PM
04/29/19 05:17 PM
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Posts: 8,390
Highland, MI.
Sunroofcuda Offline
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Highland, MI.
Personally, I'd use manifolds from a mid-90's Dodge Dakota or Ram with 318 or 360 motor. Kick-ass design & they fit beautifully.


No Man With A Good Car Needs To Be Justified
Re: Header Recommendation for a 340 [Re: Sunroofcuda] #2650286
04/29/19 05:21 PM
04/29/19 05:21 PM
Joined: Jan 2003
Posts: 29,648
Hamtramck, PA
Alaskan_TA Offline
Fluffy Balladeer
Alaskan_TA  Offline
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Hamtramck, PA
If your race all the time, consider headers.

For any street driving, the stock manifolds win.

Re: Header Recommendation for a 340 [Re: FurryStump] #2650300
04/29/19 06:06 PM
04/29/19 06:06 PM
Joined: Jan 2003
Posts: 2,326
Addison Twp, Mi.
RobG Offline OP
top fuel
RobG  Offline OP
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Addison Twp, Mi.
An issue I have is that the connections between the pipes and manifolds keep rusting out. I have tried numerous different flange gaskets. They last about 3-4 months and blow out.


I am not rich...but I get off my ass everyday to make sure I am not broke!

Can we get the Mexican cartels to help us with our supply chain issues? They don't seem to have any trouble getting stuff from one place to another.
Re: Header Recommendation for a 340 [Re: RobG] #2650301
04/29/19 06:11 PM
04/29/19 06:11 PM
Joined: Jun 2018
Posts: 350
Mequon, WI
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gzig5 Offline
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Mequon, WI
Originally Posted by RobG
An issue I have is that the connections between the pipes and manifolds keep rusting out. I have tried numerous different flange gaskets. They last about 3-4 months and blow out.


If they are original TA manifolds, they should be the "good" ones and flow pretty well.

If the problems are gaskets, your problem may not go away with headers. I'd be looking at why the gaskets are failing. They shouldn't go that fast unless what you are putting in is completely inappropriate material. Is the exhaust system well supported, especially up front? motor mounts good, etc....

Re: Header Recommendation for a 340 [Re: RobG] #2650312
04/29/19 06:59 PM
04/29/19 06:59 PM
Joined: Jan 2003
Posts: 29,648
Hamtramck, PA
Alaskan_TA Offline
Fluffy Balladeer
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Hamtramck, PA
Other than the heat shield on the drivers side, no gaskets between the manifolds & engine originally.

If the flange gaskets are blowing out, I have not heard of that before.

Re: Header Recommendation for a 340 [Re: Alaskan_TA] #2650322
04/29/19 07:29 PM
04/29/19 07:29 PM
Joined: Feb 2004
Posts: 855
ontario canada kingston
aspenrt360 Offline
super stock
aspenrt360  Offline
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ontario canada kingston
i run headers on some cars and manifolds on others they both work fine and i have run the cheap ones too with no issues i do run the Percy's dead soft aluminum gaskets with no leaks and i don't have my car slammed to low so i never have an issue with headers scraping either. to me it is just a case of preference i like power and torque i get from headers but manifolds can be a bit quieter.


2013 Chrysler 300 touring 1974 Dodge Charger SE. 360-727-8.75-3.23 sure grip 1972 Dodge Dart Swinger 1995 Dodge Ram 1500 4x4
Re: Header Recommendation for a 340 [Re: RobG] #2650353
04/29/19 09:05 PM
04/29/19 09:05 PM
Joined: Jan 2003
Posts: 5,442
Indiana
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YO7_A66 Offline
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Indiana
I run the TTi headers on my 340 and I like the fit. The only issue that I had during the install was that the header reducer seemed to point downward a bit and hurt my ground clearance. I called TTi and they sent me a pair of 5 degree reducers which aimed the exhaust back up to horizontal and they fit great.
I have had these headers on the car for about 10 years now. I do touch them up with the VHT ceramic exhaust paint now and then which keeps them looking new.


1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)
Re: Header Recommendation for a 340 [Re: aspenrt360] #2650754
05/01/19 05:35 AM
05/01/19 05:35 AM
Joined: Jul 2003
Posts: 4,741
Holland MI Ottawa
2
2boltmain Offline
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Holland MI Ottawa
These are expensive but look like a quality header that provides long life, is easy to install with future ease of maintenance-like a manifold but with better flow than a manifold.

http://www.ttiexhaust.com/MoparClassics-Headers/34025-Shorty/TTi34025.htm


Keep old mopars alive.
Re: Header Recommendation for a 340 [Re: 2boltmain] #2650880
05/01/19 01:33 PM
05/01/19 01:33 PM
Joined: Mar 2005
Posts: 403
Colorado front range
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BcudaChris Offline
mopar
BcudaChris  Offline
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Posts: 403
Colorado front range
I have the Hooker 1 3/4 Hooker Super Comps (5115, if I'm not mistaken). They fit very well. No's 5 & 7 plugs are far easier to get to than with the 1 5/8 Headman cheapies they replaced. They go over the steering link and have plenty of clearance for even a stock gear reduction starter. My mini starter goes in and out no problem. They also clear the fast ratio pitman arm, and have a fair bit more ground clearance.

I ran the engine in with the headmans, then cut them out with a sawzall and the Hookers dropped right in without popping the steering link, only pulling the engine mount bolts and jacking the engine up a few inches.

Only downsides are that the passengers side header won't clear the longer "fast ratio" idler. It could be dinged to clear, but I just put a stock idler in and I run a TTI exhaust system and used their collector adapters and the over the axle tubes sit a bit too far rearward and hit the axle tube going over speed bumps too quickly. I haven't addressed that yet.

Re: Header Recommendation for a 340 [Re: BcudaChris] #2651016
05/01/19 06:58 PM
05/01/19 06:58 PM
Joined: Jan 2003
Posts: 13,544
md
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mopars4ever Offline
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md
Over the years, I had Hooker, Hedman, Dynomax and Appliance IIRC. The set of TTI headers I now have are the best by far. I never had Dougs but I heard they were nice as TTI. Both Dougs and TTI are not cheaply priced. Dougs are a little cheaper though.

Re: Header Recommendation for a 340 [Re: RobG] #2651059
05/01/19 09:46 PM
05/01/19 09:46 PM
Joined: Jan 2003
Posts: 3,622
Millinocket, Maine
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JonC Offline
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Millinocket, Maine
TTI's for 10 years now, no issues. Fit perfect, but follow instructions. (72 340 Cuda).


11B40
Re: Header Recommendation for a 340 [Re: RobG] #2651278
05/02/19 04:12 PM
05/02/19 04:12 PM
Joined: Jan 2010
Posts: 1,440
NW Chicago suburban area
Mopar Mitch Offline
pro stock
Mopar Mitch  Offline
pro stock

Joined: Jan 2010
Posts: 1,440
NW Chicago suburban area
I also use Hooker 1 3/4 Hooker Super Comps (5115, if I'm not mistaken). Fast Ratio Pitman arm... no clearance problem. Using the longer C-body idler arm (aka: "fast ratio" idler arm), the passenger side clears but may need a very slight ding... or else it'll eventually do it by itself... no big deal.

My T/A is lowered... ground clearance is barely acceptable (for street/hwy driving)... I have about 2.5--3" from the lowest points of each side (pending which rims/tires I have on the car). Depending how low your car sits, and how much and where you drive, its only a matter of time until you will... regardless of whichever brand headers... hit the ground and have some minor header damage. After nearly 35 years with the same headers, mine do show their minor damage underneath, but not bad. I do recommend the ceramic coating... makes them look good, minor tarnishing/aging... even after 35 years. Also, pending your suspension stiffness, the front will dive to some extent and possibly allow more chance of hitting the ground; consider stiffening the front end to have less dive (stiffer TBs and shocks).... my car has a very stiff suspension setup, so, dive is grossly reduced... to my preference.

I'm curious about the fit and ground clearance of other brands, in particular TTi, so, I'm looking and asking at the various car shows (e-bodies, small blocks) for cars that have headers... looking at ground clearance, and respective tire sizes, ride heights, etc. I may purchase a new set with the new engine coming soon... maybe end of season 2019 or into 2020.

IMO, you pay for what you get... fit and quality, respectively.

Last edited by Mopar Mitch; 05/02/19 04:13 PM.

Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!






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