Barracuda Challenger Forum

Author Topic: 340exhasut header question for the experts-  (Read 434 times)

Offline electros

  • Jr. Member
  • **
  • Posts: 38
340exhasut header question for the experts-
« on: May 12, 2017 - 05:11:24 pm »
70 Cuda project info needed-please help-

I have a date coded 1970 340 and want to use exhaust manifolds that will work properly since I have none-

I have read that stock is just as good as headers and will not drag the ground-

What part numbers should I look for in stock OEM manifold exhausts  for the beast?

Any info is helpful gents!




Offline 73440

  • Sr. Member
  • ****
  • Posts: 1565
Re: 340exhasut header question for the experts-
« Reply #1 on: May 12, 2017 - 08:25:02 pm »
Look like casting numbers of LH 2863553
              casting number of. RH 2863549
67 440
73 Barracuda w/ 68 440
65 Plymouth Fury III , I sold ,was my Nana's car till 92 yo.
51 Ford F1 239 Flathead, flipped , new cab , stolen
59 BelAir 283 4 door original patina
01 Chevy van 378,304 miles
06 Crown Vic Police Interceptor
75 HD Ironhead converted to RH shift
73 HD Ironhead
82 HD Ironhead
74 Norton 850
80 HD Shovelhead
80 Husqvarna WR 390

Offline 73440

  • Sr. Member
  • ****
  • Posts: 1565
Re: 340exhasut header question for the experts-
« Reply #2 on: May 12, 2017 - 08:39:48 pm »
Part number of LH 2863552
Part number of RH 2863545

Casting numbers will be on the part

Just verified the part # 's with the Mitchell Manual bought of eBay delivered yesterday
67 440
73 Barracuda w/ 68 440
65 Plymouth Fury III , I sold ,was my Nana's car till 92 yo.
51 Ford F1 239 Flathead, flipped , new cab , stolen
59 BelAir 283 4 door original patina
01 Chevy van 378,304 miles
06 Crown Vic Police Interceptor
75 HD Ironhead converted to RH shift
73 HD Ironhead
82 HD Ironhead
74 Norton 850
80 HD Shovelhead
80 Husqvarna WR 390


Offline todd383

  • Jr. Member
  • **
  • Posts: 299
  • I'm a llama!
Re: 340exhasut header question for the experts-
« Reply #3 on: May 15, 2017 - 09:43:40 pm »
Speaking from experience,  exhaust manifolds will not out perform headers! Lol

Offline cam440

  • Jr. Member
  • **
  • Posts: 76
Re: 340exhasut header question for the experts-
« Reply #4 on: July 19, 2017 - 10:03:09 pm »
I have dougs headers on my 340  e body great fit if your considering that option , got them from summit racing
« Last Edit: July 19, 2017 - 10:04:49 pm by cam440 »

Online 340-FOUR- BARRELL

  • Jr. Member
  • **
  • Posts: 79
Re: 340exhasut header question for the experts-
« Reply #5 on: July 19, 2017 - 11:55:13 pm »
The question begs to be asked, on a stock 1970 Cuda 340 how much of an increase in horsepower can be expected with quality headers over stock exhaust manifolds?

Offline cam440

  • Jr. Member
  • **
  • Posts: 76
Re: 340exhasut header question for the experts-
« Reply #6 on: July 20, 2017 - 08:03:06 am »
My car had hp manifolds on it then I switched to dougs like I said they are a nice fit with awesome ground clearance , I would  say the headers made a little more difference for sure but I honestly feel the manifolds sound better I love my dougs headers but a little tinny sounding at idle they sound great but if I had my time again I would have left my hp manifolds on for sure
« Last Edit: July 20, 2017 - 08:04:45 am by cam440 »

Offline burdar

  • Sr. Resident
  • ******
  • Posts: 5902
Re: 340exhasut header question for the experts-
« Reply #7 on: July 20, 2017 - 09:20:57 am »
The correct 340 manifolds are probably going to cost the same or more than a set of Dougs headers...especially if you buy the Dougs at Advance Auto with one of their coupons.

My personal opinion is that if you have a stock looking car, then stick with manifolds.(headers will look out of place on an otherwise stock vehicle)  If the car is modified, go with headers.(manifolds are going to look way out of place on a modified vehicle)

Offline cam440

  • Jr. Member
  • **
  • Posts: 76
Re: 340exhasut header question for the experts-
« Reply #8 on: July 20, 2017 - 11:26:39 am »
Yes it's all a personal choice hey mines stock looking inside and out even have polyglas tires ,  but I have a stroker engine , I think the headers are better in the higher rpm range for sure mine spins to 6500 pretty easily ,



Offline jimynick

  • Resident
  • *****
  • Posts: 3805
Re: 340exhasut header question for the experts-
« Reply #9 on: July 20, 2017 - 10:32:43 pm »
There was an article recently in either Car Craft or Hot Rod where they ran manifolds or headers and if my ever shrinking brain is right, there was a more than 20 hp gain with the headers and that'll be felt in the seat of the pants IMHO.  :cheers:

Offline Rdchallenger12

  • Jr. Member
  • **
  • Posts: 433