Try this site:  http://www.cliffordperformance.net/

zimmy2nn wrote:

i have been thinging of changiing to a v 8 but now am having thoughts of may be modfying the  6 cyl does any one know of a company that makes a duel exhaust  manifold  and a intake theat would  handle maybe a 2 barrel  holly carb for this engine  thankd jim 

There is a wealth of credible information at this forum - http://www.fordsix.com/

It's sponsored by a company that makes and sells the kinds of parts you are seeking - http://www.classicinlines.com/
 

From the classic inlines site regarding 6 cylinder engine power increases.

"To increase power you need to address the induction and exhaust systems, combustion ratio and cam profile, and the ignition system."
 
 
From the classic inlines site regarding installing just a header and bigger carb.
 
“However the total gains may be disappointing and only make the shortcomings of the cylinder head, with its integral log intake manifold and the stock cam more evident”

This pretty much says it all. It's better to know in advance before spending a bunch of hard earned money on these two items, that by just installing a header and carb only, you will not notice a huge gain in performance, and if you install a bigger carb, you will loose bottom end performance just as I said, however, it will sound louder.

zimmy2nn wrote:

i have been thinging of changiing to a v 8 but now am having thoughts of may be modfying the  6 cyl does any one know of a company that makes a duel exhaust  manifold  and a intake theat would  handle maybe a 2 barrel  holly carb for this engine  thankd jim 

Headers

http://www.classicinlines.com/products.asp?cat=53

http://www.summitracing.com/search/part-type/headers/engine-size/3-3l-200/engine-family/ford-inline-6-cylinder/year/1966/make/ford/model/mustang


Here is a replacement carb sold by classicinlines and a few other sources.  No one knows what cfm or venturi size or booster type this carb is. All they say is “It as a replacement carburetor.” which is obviously fairly useless info, however, it has an easily adjustable main jet..
 
I would try to find out the cfm and the booster type if you are interested. Annular boosters are xlnt. If the venturi [not the bore] size is slightly bigger than yours then it’s a decent carb for a stock engine. If it also has annular boosters, I suggest you buy it if you have probs with yours. Classic will buy yours.
 
Day 200 urc carb.

http://classicinlines.com/proddetail.asp?prod=DAY-200-URC&cat=169
 
http://www.daytonaparts.com/carburetor.html

.
 

Last edited by barnett468 (10/27/2014 9:32 AM)

I'm sure you could get a small turbo from STS that would solve the problem.  8) ....Take it from me, if you are serious about more power and want to go to a v8 sell the 6 cyl car and buy a v8 car.

Muzz 66 wrote:

I went through all this angst with my car about 20 years ago. Big cam, 2100 2 barrel carb, long tube headers, forged pistons, and more. What you will eventually end up with is 6 cyl power with V8 gas mileage.

Hey come now, don't be so harsh [realistic], it will have at least 6 1/2 cylinder power.

Muzz 66 wrote:

I would go the route that Steve has laid out if you REALLY must keep this particular car.

Yup, at which point the upgrades I memtioned will be put to better use but may no longer be "necessary".
.

I was actually going to get my 6 cylinder dynoed but they said it wouldn't work because the dyno didn't start reading until 100 horsepower.
.

Last edited by barnett468 (10/28/2014 3:42 AM)

6sally6 wrote:

I don't own a 6 cylinder(not sure I ever woood butt) I want to think....ANY improvements cam,CR,free-er exhaust,better induction and especially a tailored ignition will NOT hurt it.
IF you have the assembly balanced and maybe a lighter flywheel with the stuff mentioned above....you should be able to wind the snot out of it with the right gear set and a T-5 OD.
IF I were to build one this is what I would think would be fun!!

well, there are 3 people besides me here with direct experience with these that are basically saying the exact same thing, and i seriously doubt that any of us are saying these things because we hate 6 cylinders and i would venture to guess that the others like 6 cylinders as i do, however, we have learned that unless you stroke the engine or supercharge/turbo it and spend around $6,000.00 on it or more that it will nevber have "impressive" V8 type power.

heres the problem . . the intake manifold is part of the head and it is really tiny on the 200 engine . . the exhast ports are also really tiny, therefore the intake won't flow much more than it currently does if you stuff a huge carb on it . . well if you cannot get more air in because of the tiny intake, there is not much point in trying to get more air out by buying $350.00 headers for it and a new $400.00 exhaust system to go with the new headers unless you simply want a louder car.

now, the standard upgrade us to nuy a head off a 250 engine because they have far better flow, HOWEVER, they have bigger cylinder chambers so if you simply bolt it on, you will have extremely low compression . . well the low comoression reduces hp and therefore voids any improvement you might try to make by installing a bigger carb and headers on it.

the partial fix for this is to 0 deck the block then mill around .090" off the head . .another option is to get domed pistons to regain lost compression.

 

Last edited by barnett468 (10/28/2014 8:01 AM)

I have nothing against the six but one thing.  It can never sound like a V8.  No matter what is done to it, it still only has the firing frequency of 6 hits per revolution.  They sound "weird" to me.  Some people probably prefer the sound of the six...  I just don't like the sound. 

MustangSteve wrote:

I have nothing against the six but one thing.  It can never sound like a V8.  No matter what is done to it, it still only has the firing frequency of 6 hits per revolution.  They sound "weird" to me.  Some people probably prefer the sound of the six...  I just don't like the sound. 

X3...I have an F150 with the EcoBoost V6.  Goes like stink, out-pulls the 5.0 by a mile, gets decent fuel mileage.

Butt (TS&T), it still sounds like an '80s Chevy Bearcat...no, that's not it, Baracuda...No, not that either.  Maybe it was a Badger...hmmmm, I don't think so but you all remember them.  They all had a very distinct "V6" sound.

In my opinion the only thing I've heard that sounds as good as a V8 is a 200 inch four-banger pushing 6K rpm across a dry lake.  Now that is music to my old ears.

BB

Last edited by Bullet Bob (10/29/2014 5:09 AM)

John Ha wrote:

MustangSteve wrote:

I have nothing against the six but one thing.  It can never sound like a V8.  No matter what is done to it, it still only has the firing frequency of 6 hits per revolution.  They sound "weird" to me.  Some people probably prefer the sound of the six...  I just don't like the sound. 

Ever heard a Porsche at full song?  Or a BMW 6 or an E-Type Jag 4.3?  That's some of the sweetest music on earth - at least to my ears.
 

OMG...I can't believe you would even attempt to compare the sound of those engine to the sound of a ford inline 6. You should be ashamed of yourself, lol.

  .
 

barnett468 wrote:

OMG...I can't believe you would even attempt to compare the sound of those engine to the sound of a ford inline 6. You should be ashamed of yourself, lol.
 

Ashamed? Not hardly.  The Ford inline sixes sound every bit as sweet when they're revved up somewhere around 3000 or there-abouts.  I know - I've driven them that way and the sound is wonderful! 

You should be ashamed for 1, never experiencing it and 2, for not recognzing the potential.

My advice would be go with the v8. If you modify the 6and gain any significant power you should consider a steering and brake upgrade anyway. I did it to my 66coupe and I've never regretted it.

barnett468 wrote:

Here's the only video of a 200 inline 6 on the dyno and the engine probably has $5500.00 into it but for some reason they didm'y post the results...wonder why?

http://www.youtube.com/watch?v=Cqh0DUPRs-0

Yep, that sounds like a six, alright...

Bottom line is this...  Build whatever you think you will like.  You can always do it over if it turns out what you built is not what you thought you would like.  And you will have expensive take-off parts laying around, just like the rest of us who have gone down that path in one way or another.  It's all part of the hobby, and when you show up at the bash, you will have something unique to show off.

One thing is for sure, wrenching on that six in a Mustang engine bay has got to be a rewarding experience because you can get to everything easily.