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Headers for 70 340 Challenger recommendation #2782703
06/08/20 11:49 AM
06/08/20 11:49 AM
Joined: Jan 2003
Posts: 1,046
Colorado Springs
T/A CARe Offline OP
super stock
T/A CARe  Offline OP
super stock

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Posts: 1,046
Colorado Springs
Hey folks,

Looking for good fitting headers for 1970 Challenger 340 with 727 trans to clear Hi Torque (mini) starter and also with good ground clearance less than $600.

Thanks!

Re: Headers for 70 340 Challenger recommendation [Re: T/A CARe] #2782756
06/08/20 01:05 PM
06/08/20 01:05 PM
Joined: Oct 2006
Posts: 7,358
Iowa
burdar Offline
Owen's Dad
burdar  Offline
Owen's Dad

Joined: Oct 2006
Posts: 7,358
Iowa
Dougs or TTI are the only ones that are going to give you decent ground clearance. I think I've seen people say you can get Dougs at Advance Auto with their 20% off coupon. That's probably going to be your cheapest route.

Re: Headers for 70 340 Challenger recommendation [Re: T/A CARe] #2782822
06/08/20 02:33 PM
06/08/20 02:33 PM
Joined: Jan 2003
Posts: 8,390
Highland, MI.
Sunroofcuda Offline
master
Sunroofcuda  Offline
master

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Posts: 8,390
Highland, MI.
Also, if you have power steering make sure they are supposed to fit.


No Man With A Good Car Needs To Be Justified
Re: Headers for 70 340 Challenger recommendation [Re: Sunroofcuda] #2783003
06/08/20 07:52 PM
06/08/20 07:52 PM
Joined: Jan 2003
Posts: 1,009
Richmond Twp. Mi.
Mr340 Offline
super stock
Mr340  Offline
super stock

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Posts: 1,009
Richmond Twp. Mi.
I have Hooker Super Comps on my 73 #5115 with ps, fit good and are above the steering linkage

Re: Headers for 70 340 Challenger recommendation [Re: Mr340] #2783020
06/08/20 08:44 PM
06/08/20 08:44 PM
Joined: Jan 2003
Posts: 8,473
Candler,NC / Myrtle Beach, SC
J
JDMopar Offline
master
JDMopar  Offline
master
J

Joined: Jan 2003
Posts: 8,473
Candler,NC / Myrtle Beach, SC
I had Hooker 5115 Super Comps on my 71 Challenger with a 340. They fit good, had good ground clearance, went behind the steering, but they leaked like hell at the header flanges. I used the best gaskets available....didn't help. The tubes on the 5115's are also too big for a stock motor. If I had it to do over...it would have been Dougs D453's instead. twocents

Re: Headers for 70 340 Challenger recommendation [Re: T/A CARe] #2783063
06/09/20 12:44 AM
06/09/20 12:44 AM
Joined: Jan 2003
Posts: 8,390
Highland, MI.
Sunroofcuda Offline
master
Sunroofcuda  Offline
master

Joined: Jan 2003
Posts: 8,390
Highland, MI.
Originally Posted by TA_Care
Hey folks,

Looking for good fitting headers for 1970 Challenger 340 with 727 trans to clear Hi Torque (mini) starter and also with good ground clearance less than $600.

Thanks!


FWIW, I'd use manifolds off a 90's 5.9 Magnum engine - 318 is the same also I believe. They are a great design, & bolt right up. I pulled the crappy manifolds off my 73 340 Charger Rallye & used Magnum manifolds w/no gasket. Only thing I had to do was get a different trans dipstick tube from Masta Performance - the RH OE tube was in the way of the manifold. Everything installed from the top no problem.


No Man With A Good Car Needs To Be Justified
Re: Headers for 70 340 Challenger recommendation [Re: Sunroofcuda] #2783076
06/09/20 06:53 AM
06/09/20 06:53 AM
Joined: May 2005
Posts: 4,681
Florida
BDW Offline
master
BDW  Offline
master

Joined: May 2005
Posts: 4,681
Florida
Originally Posted by Sunroofcuda
Originally Posted by TA_Care
Hey folks,

Looking for good fitting headers for 1970 Challenger 340 with 727 trans to clear Hi Torque (mini) starter and also with good ground clearance less than $600.

Thanks!


FWIW, I'd use manifolds off a 90's 5.9 Magnum engine - 318 is the same also I believe. They are a great design, & bolt right up. I pulled the crappy manifolds off my 73 340 Charger Rallye & used Magnum manifolds w/no gasket. Only thing I had to do was get a different trans dipstick tube from Masta Performance - the RH OE tube was in the way of the manifold. Everything installed from the top no problem.


Got a pic? Custom connection to rest of system?

Re: Headers for 70 340 Challenger recommendation [Re: BDW] #2783243
06/09/20 02:22 PM
06/09/20 02:22 PM
Joined: Nov 2003
Posts: 2,936
GA
roadrunninMark Offline
master
roadrunninMark  Offline
master

Joined: Nov 2003
Posts: 2,936
GA
I'd like to know more about the 90s magnum manifolds as well. Are you supposed to use a gasket and if so, which is the best?

Also, what is the part number on the Masta Performance dipstick?

What does everything think about these headers from Ebay?? https://www.ebay.com/itm/Long-Tube-Exhaust-Headers-Fits-Dodge-Chrysler-Plymouth-Small-Block-318-340-360/333018998049?fits=Year%3A1970%7CModel%3ACuda%7CSubmodel%3ABase%7CEngine+-+Liter_Display%3A5.6L%7CMake%3APlymouth%7CTrim%3ABase%7CEngine%3A5.6L+5572CC+340Cu.+In.+V8+GAS+OHV+Naturally+Aspirated&hash=item4d897aa521:g:PUkAAOSwUu5cP8A9

Price is cheap (most likely chinese).... has anyone tried them?

Last edited by roadrunninMark; 06/09/20 05:58 PM.
Re: Headers for 70 340 Challenger recommendation [Re: roadrunninMark] #2783322
06/09/20 05:21 PM
06/09/20 05:21 PM
Joined: Jan 2003
Posts: 8,390
Highland, MI.
Sunroofcuda Offline
master
Sunroofcuda  Offline
master

Joined: Jan 2003
Posts: 8,390
Highland, MI.
Originally Posted by roadrunninMark
I'd like to know more about the 90s magnum manifolds as well. Are you supposed to use a gasket and if so, which is the best?

Also, what is the part number on the Masta Performance dipstick?


As far as the trans dipstick, call & talk with Dan Masta - tell him what you have & what you are running (manifold or header-wise) & he will know which one to use. As far as the 318/360 Magnum manifolds, these are available new aftermarket. Both sides sweep back & aim down at about a 45* angle. I did not use ANY gaskets with mine & they did not leak at all. You will need to take a gasket for a 340/360 & hold it up to each manifold because the Magnum manifold webbing needs to be ground & tapered away in the center two so the exhaust does not hit an edge when entering the manifolds. EASY to do with a grinder. As far as plumbing your headpipes to fit these, any competent muffler shop can do this - they will flare the headpipes to mate up with the male lip at the exit of each manifold.

Go to Rock Auto - they have new ones for cheap, plus you can view photos of them to see the design. Go to Dodge 1996, Ram 1500, & 5.9 motor, & exhaust manifolds.


No Man With A Good Car Needs To Be Justified
Re: Headers for 70 340 Challenger recommendation [Re: roadrunninMark] #2783514
06/10/20 06:15 AM
06/10/20 06:15 AM
Joined: Jul 2003
Posts: 4,741
Holland MI Ottawa
2
2boltmain Offline
master
2boltmain  Offline
master
2

Joined: Jul 2003
Posts: 4,741
Holland MI Ottawa
In the world of small block mopar headers it comes down to two options. Headers that dont hang low and headers that hang low. The desirable units that dont hang low start at pricey and go up to incredibly expensive. BUT these headers (Dougs and TTI) are made from heavy wall tube steel and have thick flanges. The hang low headers are incredibly affordable, hang low and are made from much thinner steel. The above headers in the ebay link will hang low.

Last edited by 2boltmain; 06/10/20 06:17 AM.

Keep old mopars alive.
Re: Headers for 70 340 Challenger recommendation [Re: T/A CARe] #2783725
06/10/20 02:38 PM
06/10/20 02:38 PM
Joined: Aug 2015
Posts: 20
St. Petersburg, Florida
BillyBee Offline
member
BillyBee  Offline
member

Joined: Aug 2015
Posts: 20
St. Petersburg, Florida
I went with TTI on my 1970 Challenger 340+6. I really like them.

IMG-2620.jpg

1970 Challenger T/A, 4-speed, EV2
1969 Super Bee, 383 / 4-speed, F8 triple green
1968 Firebird 400 / 4-speed, triple black
Re: Headers for 70 340 Challenger recommendation [Re: BillyBee] #2783803
06/10/20 05:43 PM
06/10/20 05:43 PM
Joined: Nov 2003
Posts: 2,936
GA
roadrunninMark Offline
master
roadrunninMark  Offline
master

Joined: Nov 2003
Posts: 2,936
GA
What about "block hugger" headers? Are they any better than manifolds?

Re: Headers for 70 340 Challenger recommendation [Re: T/A CARe] #2783827
06/10/20 06:42 PM
06/10/20 06:42 PM
Joined: Jan 2003
Posts: 29,648
Hamtramck, PA
Alaskan_TA Offline
Fluffy Balladeer
Alaskan_TA  Offline
Fluffy Balladeer

Joined: Jan 2003
Posts: 29,648
Hamtramck, PA
Factory manifolds.

No need to mess with great things.

Re: Headers for 70 340 Challenger recommendation [Re: Alaskan_TA] #2783856
06/10/20 07:52 PM
06/10/20 07:52 PM
Joined: Aug 2015
Posts: 20
St. Petersburg, Florida
BillyBee Offline
member
BillyBee  Offline
member

Joined: Aug 2015
Posts: 20
St. Petersburg, Florida
Unless the factory manifolds are missing when you buy the car. Then you can consider exercising alternative options ;-)


1970 Challenger T/A, 4-speed, EV2
1969 Super Bee, 383 / 4-speed, F8 triple green
1968 Firebird 400 / 4-speed, triple black
Re: Headers for 70 340 Challenger recommendation [Re: JDMopar] #2784145
06/11/20 02:07 PM
06/11/20 02:07 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've run Hooker 5115 for past 30+ years (ceramic coated)... they clear the Fast Ratio longer pitman and idler arms for my T/A ps unit. the ground clearance is OK, but since my car is a low-rider, I always have to be careful about certain road conditions... and have bottomed them out a couple times... damage not bad to the lowest tubes, but evident. (Actually, the longer idler arm requires a slight notch at on tube... just ding into it for a bit of extra clearance.)

HOWEVER, as I'm building a new engine now, installed, etc... I noticed the shape of the Hooker 5115 ports do NOT properly match the Fel-Pro header gaskets (regardless, should be the same for all brands). THAT explained to me WHY I've always had a slight exhaust leak at certain ports. The problem is the raised ridge welded ares of the headers... they are not very good at matching the gasket ports. SO.... I've taken time to use Hi-Temp JB WELD putty and expand the header flange sealing areas from their raised ridges... this will now seal properly against the gaskets.

Depending how well the HI-TEMP JB WELD holds up, I may, eventually, purchase a set of TTI headers... for ground clearance.. as well as,hopeful much better sealing at the gasket ports (matching ports).


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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