I have a 305 tpi and am looking to put headers on it. Do I have to use shorty headers? I was also wondering about the pollution crap that comes off the stock exhaust manifold. Will the silver tubes go onto the aftermarket headers? Or can I just not put them back on? All help or suggestions would be appreciated.

 

Silver "junk" is emissions related, and my, or may not have to be re-used with your new headers depending on where you live. (If they emissions test or not) Buy your headers accordingly (with, or without air tubes... and yes they will bolt right up)

You obviously do not have to use shorty's, there are long tubes (usually preferred, but more difficult to install), and mid-length headers available depending on what your goals are for the 305.

Use the search button, and stickies for good Header info.

 

Emissions checks in my area are not an issue. I was more concerned with it effecting the computer.

 

Well, I've never had them effect the computer in a negative way. I assume you mean throwing a check engine light....

Don't forget to order headers with an o2 sensor bung already welded in, or buy the bung and weld it in yourself.

Also figure in you will need a y-pipe to fit the shorty's, or long tubes, whichever you choose.

 

Hooker 2055's are nice and have a nice y pipe... Dyno Don's too... his are steel...
I got the Hooker ceramic coated, cool's down the engine bay quite a bit..

Rafael

 

How much power does it add to the car? are they worth doing?

 

Power is depending on other bolt ons that may be on the motor, and its up to you if its worth it. I can tell you from experience in multiple installs that it is a p.i.t.a....

A no option L03 is the easiest to install, and a LB9/L98 TPI (With A/C) is a another thing.

It will take you a solid afternoon is my keyboard estimate if it ALL goes well.

 

Well things never go well. but thanks for the input. I believe I am going to add it to the purchase once budget allows list.

 

i have hooker headers on my 86iroc also and they seem to be working great

 

did you just delete the emissions tubing that was above the original exhaust manifolds?