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I am looking into buying some headers for my 67 Mustang. I currently have a 289 in the car. I have been looking at the following headers:

HOOKER SUPER COMP LONG TUBE HEADERS BLACK 289 / 302 1965-1970
HOOKER COMP LONG TUBE HEADERS BLACK 289 / 302 / 351W 1964-1973
PERTRONIX TRI-Y HEADERS CERAMIC COATED 260/289/302 1964-1970 MUSTANG

I am not sure which way to go. I have a ultimate goal of eventually putting a 302 stroked to 331 or 347. Not sure when that will actually happen though....

I read that all of these match up with 289/302/351, but I am not sure if that means exhaust flow rate or exhaust port. If I buy a set of headers now, will I have to buy another set if I upgrade the engine?
 

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I have the hooker competition long tubes. they are great, super easy to install and they come with all the gaskets and hardware.
one thing you gotta know though is they have to go in from the bottom, so you jack the front up about 24" off the ground (with jackstands!) and they go right in!
 

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One thing you have to watch is that some of them require a steering drop down bracket. I have a set of Dynomax headers on my 351W and had to modify the right side due to the engine width. They will bolt right in yours without mods and no steering bracket is required. Mustang headers just fit really tight, so have fun putting them in......it will be worth it in the end.:bigthumbsup
 

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Whatever headers you buy now should work fine with engine upgrades, they will breath better than the stock exh. manifolds. What options do you have or plan to have? As mentioned if you have powersteering many headers require a drop bracket which can be a pain as it puts stress on the frame mount and many tear out of the frame eventually.

What transmission do you have or plan to install? Some headers have fit troubles with Zbars for manual trans and others won't fit around an AOD without major work.

I believe one of the Hooker models are notorious for hanging way low out the bottom but can't remember which model.

Right off the bat, if they fit I'd prefer the Tri-Y for a street car.
Jon
 

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I love my Doug thorleys! I did have to use the drop down bracket because of my power steering but with that they are great. I had the money at the time. They where pricy but with the bit of research i did, they where the thickest gauge stainless i could find. A few other manufactures where equivalent. And the flanges where thicker. But i do think youre in good hands which ever way you go. No ping when the car cools i have been told that sound comes from hot headers cooling i dont know if this is true.
 

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Discussion Starter #6
Thanks guys. The plan for now is to make this car a street car with a little bit of kick to it. Want to be able to drive it. Currently the engine is the stock 289 with 2 barrel carb (another thing to change).

Is there a real big difference between Tri-Y and Long tube?
 

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I believe tri Y have better low-end torque, and long tubes have better high end HP. You will probably not notice it on a stock 289
 

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The difference between Tri-Y and long tube headers is the rpm where you get the most power. The tri-ys favor the low to mid range and the long tube headers favor the top end.
That is unless you have a set custom made - then you can fit the headers to match the rpm range you want.
 

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I am looking into buying some headers for my 67 Mustang. I currently have a 289 in the car. I have been looking at the following headers:

HOOKER SUPER COMP LONG TUBE HEADERS BLACK 289 / 302 1965-1970
HOOKER COMP LONG TUBE HEADERS BLACK 289 / 302 / 351W 1964-1973
PERTRONIX TRI-Y HEADERS CERAMIC COATED 260/289/302 1964-1970 MUSTANG

I am not sure which way to go. I have a ultimate goal of eventually putting a 302 stroked to 331 or 347. Not sure when that will actually happen though....

I read that all of these match up with 289/302/351, but I am not sure if that means exhaust flow rate or exhaust port. If I buy a set of headers now, will I have to buy another set if I upgrade the engine?
Hi,

The first question is where do you want the engine to perform it's best? That is, if mainly a street ride with attitude, I favor the TRI-Ys, if more strip time, then, the long tubes will be more favorable.
Good Luck!
 
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