Author Topic: Best Headers for a '79 400 w/4spd?  (Read 2846 times)

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Offline muzzfactor

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Best Headers for a '79 400 w/4spd?
« on: May 11, 2007, 08:59:10 PM »
I've read so many posts that I can't really keep them all straight.  Can someone let me know what are the best headers for a '79 Trans Am with a 400 and 4spd.  I'm not so worried about flow as I am about fitment.  Thanks.
1979 Trans Am 400/4spd Blk & Gold w/T-tops, 400 has been stroked to a 455.  Still in the process of putting it all together!!!!!!!!

Offline HughJass

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Re: Best Headers for a '79 400 w/4spd?
« Reply #1 on: May 11, 2007, 09:25:36 PM »
I think Dougs are the ones everyone likes the best.
Light travels faster than sound. That's why some people appear bright until you hear them speak.



79 W72 WS6,  work in progress - nicknamed Lucy

Offline turbota400

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Re: Best Headers for a '79 400 w/4spd?
« Reply #2 on: May 11, 2007, 09:36:30 PM »
That's what I have.
Shawn
1972 Chevy C-10
1980 Trans Am Pace Car - 428 ci Poncho in the works
1992 S-10 2WD- Work Bomber/Gas saver
1997 Chevy X-cab 4x4 - Vortec 350

Offline muzzfactor

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Re: Best Headers for a '79 400 w/4spd?
« Reply #3 on: May 12, 2007, 09:40:49 AM »
Where are you getting your "Dougs" headers?  I've searched their site (which is now Petronix) along with Summit and Jegs and can't find any listed for my application.  Does anyone happen to have a part number I can use?  Thanks.
1979 Trans Am 400/4spd Blk & Gold w/T-tops, 400 has been stroked to a 455.  Still in the process of putting it all together!!!!!!!!

Offline turbota400

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Re: Best Headers for a '79 400 w/4spd?
« Reply #4 on: May 12, 2007, 08:54:20 PM »
I got mine from my local speed shop or you can get them from Performance Years.
The part number is:  D570 for D-port heads  or  D581 for round port.  They are pricey but well worth the money in my opinion.

Go to www.Performanceyears.com  to check them out.
Shawn
1972 Chevy C-10
1980 Trans Am Pace Car - 428 ci Poncho in the works
1992 S-10 2WD- Work Bomber/Gas saver
1997 Chevy X-cab 4x4 - Vortec 350

Offline Amtrak

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Re: Best Headers for a '79 400 w/4spd?
« Reply #5 on: May 12, 2007, 10:27:49 PM »
dont use headers  all they do is leak and when you go over speed bumps they drag the ground use ramair IV or III exhaust manifolds instead

Offline turbota400

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Re: Best Headers for a '79 400 w/4spd?
« Reply #6 on: May 13, 2007, 11:18:33 AM »
dont use headers  all they do is leak and when you go over speed bumps they drag the ground use ramair IV or III exhaust manifolds instead

I've never had that problem.  Sounds to me like the wrong headers.  If you use quality gaskets they don't leak either.  I use copper on the head side and dead soft aluminum on the collectors.
Shawn
1972 Chevy C-10
1980 Trans Am Pace Car - 428 ci Poncho in the works
1992 S-10 2WD- Work Bomber/Gas saver
1997 Chevy X-cab 4x4 - Vortec 350