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Anyone tried Clifford headers on their FL?
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   Forward Look Technical Discussions -> The Exhaust Pipe - Modification & PerformanceMessage format
 
ABloch
Posted 2015-07-17 11:22 PM (#484726)
Subject: Anyone tried Clifford headers on their FL?



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Just bought a '61 Belvedere w/ a slant 6 and was looking at the Clifford headers. Anyone tried them on their FL? Looks to me like I'd have enough room and then some but would hate to order them and run into a fitment problem.

Thanks, Andrew
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Rodger
Posted 2015-07-18 12:24 AM (#484728 - in reply to #484726)
Subject: Re: Anyone tried Clifford headers on their FL?


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Hola Andrew

If you take your 1961 Slant Six Powered Car to any local Neighbor-hood Muffler Shop and let them know that you want an Exhaust System as A Feather Duster or any Super Six MoPar
- you will have what you are asking at a much lower cost or future worries.

I got mine Clifford's from JC Whitney.



Rodger & Gabby
Colo Spgs
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mstrug
Posted 2015-07-18 5:12 AM (#484740 - in reply to #484726)
Subject: Re: Anyone tried Clifford headers on their FL?



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http://www.hotrod.com/cars/project-vehicles/mopp-0304-1962-plymouth...
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Powerflite
Posted 2015-07-19 11:20 AM (#484827 - in reply to #484740)
Subject: Re: Anyone tried Clifford headers on their FL?



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The problem with headers on a slant motor is that you lose the heated intake. Not a big deal for Arizona or other hot places, or summer only driving, but not good for anywhere else. Personally, I don't like the carburetion setup on the /6. The only good one was the super six that Rodger mentioned from the late 70's. But then you have to get the intake, carb, linkage etc. to swap it all over and the setup is getting pricey lately. So I am just going to convert mine over to a FAST multi-port fuel injection setup. Do that and headers would work great on it.

Edited by Powerflite 2015-07-19 11:26 AM
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Rodger
Posted 2015-07-20 12:42 PM (#484925 - in reply to #484726)
Subject: Re: Anyone tried Clifford headers on their FL?


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Hola Andrew

Even though The Feather Duster and The Super Six's use The Same Exhaust Manifold as you already have --- the Exhaust Pipes - Muffler's and etc are the same diameter spec's.

You have a 1 bbl Carburetor on a 170 Cubed Engine and so does The Feather Duster and its Slant Six Dodge Cousin ( with Super Six's they add a 2 bbl Carburetor --- just as AMC
Six's had already been doing for some time ).



Rodger & Gabby
Colo Spgs
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Polybun
Posted 2015-07-20 10:21 PM (#484994 - in reply to #484925)
Subject: Re: Anyone tried Clifford headers on their FL?



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I'm seriously trying to work out why you keep telling people not to peformance mod their engines man, especially on the performance board.

who needs carb heat? Who needs and easy to start engine? If these people wanted that they wouldn't be looking into this stuff! Carb heat sucks, reduces power, reduces fuel effeciency, all in the sake of an easy to live with engine. If I wanted something easy to live with I would get a toyota, and then get bored, shove in a gigantic cam and the biggest turbo i could afford and blow it up a week later! But I don't. And I don't think may of the people posting in the performance section of this board do either.

Come to think of it, that's what slants really like, boost, and lots of it!
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61sene
Posted 2015-07-20 11:43 PM (#485000 - in reply to #484726)
Subject: Re: Anyone tried Clifford headers on their FL?



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Boost, Boost, Boost.... Stock pistons should be alright for about 7# or so. I believe wiesco has some off the shelf forged slugs for the six so you can really put the screws to her. Did you call Clifford and see what they say about fitment? Or do you have the ability or a friend that can help you mod them? If there not super expensive that's all the more reason to mod them if you have to to make them work. I'll cut up a 300.00 set of headers but have more reservations about cutting up expensive sets like tti and then likes.
Not sure if they bolt right on your car with no clearance issues but it is metal. So it can be manipulated, cut, and rerouted if need be.-Joe
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Rodger
Posted 2015-08-03 10:16 PM (#486207 - in reply to #484726)
Subject: Re: Anyone tried Clifford headers on their FL?


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Hola Andrew

As you do your "Kitchen Table Planning" --- remember there is a result which will give you a worse performance than you presently have and there is
a better performance that you currently have.

Any person that has been there and now knows --- will always say using a lot of money to say that you have a ______ Exhaust System is a poor usage of your funds
( but it is your funds and you are to use it as you want ). Adding headers to your Slant Six is this. Not having "Warm Up Carburetor Heat" on any Street Driven Vehicle is this.



Rodger ahd Gabby
Colo Spgs



psst
Build To Quality not to price
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Polybun
Posted 2015-08-05 8:17 PM (#486377 - in reply to #486207)
Subject: Re: Anyone tried Clifford headers on their FL?



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Rodger - 2015-08-03 7:16 PM

Hola Andrew

As you do your "Kitchen Table Planning" --- remember there is a result which will give you a worse performance than you presently have and there is
a better performance that you currently have.

Any person that has been there and now knows --- will always say using a lot of money to say that you have a ______ Exhaust System is a poor usage of your funds
( but it is your funds and you are to use it as you want ). Adding headers to your Slant Six is this. Not having "Warm Up Carburetor Heat" on any Street Driven Vehicle is this.



Rodger ahd Gabby
Colo Spgs


anyone that has been there knows these headers flat out work! STFU if you aren't willing to admit it. The proof is in the time slips, I would LOVE to see you get a car into the 13's on a slant, normally aspirated on any manifolds made for it. Because I had a slant car in the 13's, I know they work. Stop spreading lies.


Edited by Polybun 2015-08-05 8:18 PM
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1960fury
Posted 2015-08-05 8:33 PM (#486380 - in reply to #484994)
Subject: Re: Anyone tried Clifford headers on their FL?



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Polybun - 2015-07-20 10:21 PM

who needs carb heat? Who needs and easy to start engine? Carb heat sucks, reduces power, reduces fuel effeciency,



this has nothing to do with easy starting and actually everyone needs "carb heat" to run an engine EFFICIENTLY and with worn piston rings and fouled plugs no engine is efficient anymore. also carburetor icing can occur even above freezing temperatures without a heat riser.

i'm all for headers and performance mods and running headers does not mean no heat riser.
i run headers with heat riser and even the the header manufacturers finally learned and are offering heat riser kits for their products.

Edited by 1960fury 2015-08-05 8:36 PM
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ttotired
Posted 2015-08-05 9:54 PM (#486395 - in reply to #484726)
Subject: Re: Anyone tried Clifford headers on their FL?



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On the frozen carby thing, I turbo charged an old car once and on its first test drive, the ventury part of the carby froze up

I was lucky it was only a short test drive because I think if I went much further, the throttle linkage would have gotten stuck on the ice

This was basically like a blue flame chevy engine, but smaller and I set it up as a draw through system

It was fun to do

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Powerflite
Posted 2015-08-06 12:00 AM (#486400 - in reply to #486395)
Subject: Re: Anyone tried Clifford headers on their FL?



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The frozen intake makes a bigger difference on a 6cyl motor than it does on a V8 too, because it doesn't get as much heat from the motor around it.
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60 dart
Posted 2015-08-06 3:57 AM (#486431 - in reply to #486395)
Subject: Re: Anyone tried Clifford headers on their FL?



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ttotired - 2015-08-05 9:54 PM

On the frozen carby thing, I turbo charged an old car once and on its first test drive, the ventury part of the carby froze up

I was lucky it was only a short test drive because I think if I went much further, the throttle linkage would have gotten stuck on the ice

This was basically like a blue flame chevy engine, but smaller and I set it up as a draw through system

It was fun to do




i think that is called the venturi effect , when rapid incoming air is compressed by the ventura , it can freeze --------------------------------------------later
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JT Vincent
Posted 2015-09-09 4:25 PM (#489331 - in reply to #484726)
Subject: Re: Anyone tried Clifford headers on their FL?



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Putting headers on a 225 is standard practice. The original exhaust manifold was a poor design, especially given how many things about that engine were really well engineered. Six into one stubby exit. I think it was made that way for easy adaptation to hundreds of applications, from trucks to full-sized cars, to cars for Aus and South America with different engine compartments. I think if someone wants their exhaust gas not colliding with itself and the manifold, they are in good company. I'd hit up the guys on the HAMB regarding fitment. They may be more amenable and open-minded about hopping up stuff than some folks on this board, which is more "purest," in nature. I don't mean that in a critical way, but the "correct way," to do something as opposed to the most effective way of doing something, are not always the same.
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Powerflite
Posted 2015-09-10 8:06 AM (#489372 - in reply to #489331)
Subject: Re: Anyone tried Clifford headers on their FL?



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My original comment about the heated intake is a real issue for the 6 cyl motors and not to be dismissed as being purist related. Another problem with headers is that you lose your choke. Now you must change your intake to a 4bbl so that you can use an electric choke of some kind. The 4bbl setups I have seen all run too rich, even with 390 cfm Holleys. The best carburetor setup for the slant motor is the super six 2bbl setup, period - with a stock choke and heated intake. Now if you really want to upgrade the exhaust, then get a set of the original Doug Dutra duals that retain the choke well and manifold heat. Slant 6 headers are best left for fair weather cars only or cars with fuel injection conversions to eliminate the need for a choke and manifold heat.

I am all for upgrades, but if you don't have a good plan to upgrade the intake as well, you are going to regret it if you want to drive the car in the cold weather.



(dduals-set.jpg)



Attachments
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Attachments dduals-set.jpg (21KB - 243 downloads)
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JT Vincent
Posted 2015-09-21 1:04 AM (#490129 - in reply to #489372)
Subject: Re: Anyone tried Clifford headers on their FL?



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Mechanical choke.
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