McVette

Hey guys I have a 79 vette that i want to put headers on, the motor was replaced about 2 years ago with a standard 350 GM crate motor and I have a question for ya.......is there a certain style of headers that i would need to buy for fitting purpose? I did not know if there was a certain style i would need to look at. I saw a listing someone posted in an earlier post that i had about intake manifolds...thanks in advance....

doctorgene

Yes Sir; It depends on what you want to accomplish. You can add factory Stainless Steel headers from a 1981 or 1982. They will bolt right on, without changing any head pipes on your existing system, if it is stock. The factory said it added around 7 to 14 H. P. I understand that if you add 2.5 inch exhaust stock manifolds, that you won't notice any different H. P. gain until you reach 5 thousand RPm. I have the factory stainless headers, with 2.5 inch exhaust system from Corvette Central. Do I ever like them, I never turn on the radio, just listen to the rumble. Have a great one. Gene

McVette

hey doctorgene are u talking about short headers......i am thinking about buyin some full length headers

Easy Mike

He's talking about the factory exhaust manifolds for the 81 and 82 engines. They amount to short tube headers from GM.

Google headers and do a little reading. Tube headers alone won't offer much of a horse power gain. You are also going to want new exhuast pipes - possibly mufflers - to go with your headers.

Ask around about changing spark plugs with headers installed. Could turn out to be more of a PITA than the stock arrangement.

Tim H

Summit Racing SUM-G9003 - Summit Racing® Headers $109.99.
I have these and they go on with no problems and changing plugs is very easy. they don't rub anything or drag the ground.

McVette

Oh ok thanks Tim I think that is same set I saw in another post
......hey Mike must curious why would u say I might need to change tailpipe also
....the ones on car look almost new?

Kustom8

I think Mike was speaking on,if your car is original,then you don't have true duels.74 was the last year for true duels on vettes.

Tim H

I know these fit because i have used them 3 times now, but I bet there are others like Headman or Dynomax/Flowtech, or what ever The parts catalogs have.
Now I would say Hookers probably fit great but the price is higher for the same thing other than the "Hooker" tag on the tube.

leadfoot4

First of all, in order to install a set of full length headers, you're going to have to modify the exhaust pipes somewhat, so they'll connect to the headers.

Secondly, while headers will provide a flow increase over the stock manifolds, this just moves whatever restrictions there might be, to somewhere else downstream. Most small block C-3s have 2.25" pipes, IIRC. Big blocks had 2.5" pipes, which naturally, will flow better, and if installed on your small block car, will allow your headers to perform better.

Don't forget, after installing headers, you may need to re-jet your carb, to take into account the better flow of the headers.

Priya

Are those for 4 speed or automatic?

scottyp99

I haven't used these headers personally, but have read more than a few posts by folks that really like 'em. Haven't heard anybody complain about 'em. They are what I am planning on using in the near future. And the price is so right, it don't get no righter!!!


Scott

McVette

sounds good.... looks like I am gona give them a try and ohh i guess I should have mentioned that the PO took the cat out and they are straight pipes out the back with just mufflers

Easy Mike

Do a little homework on optimum exhaust pipe diameter to go with your headers. Too small is bad; too big is equally bad. Have you measured your existing pipes?

Aflac

you could always go easier and pick up a set of 2.5" ram horns and keep a stock look. I have seen them for about 120 a set...They do have the early ear on the front but that's easily removable...

qwank

Don't bother with those stock GM stainless manifolds, they are junk.

I also have those Summit headers and they fit perfect and went in from the bottom with no problems. I stripped the black paint off them and painted them with VHT paint before the install though.

Priya

Are those for 4 speed or automatic?

79vetter

I'd also like to know this..

scottyp99

Yes.


Scott

Priya

How about an unambiguous response?

scottyp99

No.


Scott