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Old 08-05-2012   #1
Geo
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Join Date: Sep 2011
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GTA Year: 1988
GTA Engine: 305 TPI 5-Speed Manual
Headers for 5.0L / 5.7L TPI

Does anyone recommend an excellent pair of headers for these motors? preferably ceramic coated or stainless? Is there something that just fits right with no modifying, cutting or bending of any kind?
Any advise would be great !! Thanks !
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Old 08-05-2012   #2
soarestransam19
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Exclamation Re: Headers for 5.0L / 5.7L TPI

Any shorty's headers will be fine flow tech is great cause they are cheap an are a direct bolt up with the flow tech y pipe of course, hedmann headers are also great an for the price u cant go wrong but u do need the y pip for those as well an also come with a lifetime warranty, edelbrock makes legal smog emission headers but they no longer sell exhaust products so if u go with these make sure they arent bent to poop an also must have the pipe for those as well. I also believe summit sells its own brand headers but i havent a y pipe made to go with them
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Old 08-05-2012   #3
djmarch
1989 Gunmetal Grey, 350 TPI, 700R4, 3:27 BW
 
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GTA Year: 1989
GTA Engine: 350 TPI Automatic
Re: Headers for 5.0L / 5.7L TPI

Dyno Don's headers have the ceramic 1 3/4 tubes made especially for the 3rd gen vehicles..
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Old 08-05-2012   #4
Geo
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GTA Year: 1988
GTA Engine: 305 TPI 5-Speed Manual
Re: Headers for 5.0L / 5.7L TPI

Thanks guys, all the information is excellent but has anyone actually installed any on their GTA without having to butcher anything? I have 3" stainless magna flow exhaust with a catco high flow cat. I understand it will need the Y pipe too.
Thanks !!
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Old 08-05-2012   #5
Fred91GTA
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Re: Headers for 5.0L / 5.7L TPI

Quote:
Originally Posted by djmarch View Post
Dyno Don's headers have the ceramic 1 3/4 tubes made especially for the 3rd gen vehicles..
I have Dyno Dons. Mine went in without any fitment problems and did not need anything banged out or modified.
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1991 Trans Am GTA... Hopefully again
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Old 08-05-2012   #6
Geo
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GTA Year: 1988
GTA Engine: 305 TPI 5-Speed Manual
Re: Headers for 5.0L / 5.7L TPI

Thanks Fred!

Is there a website for Dyno Don's headers?
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Old 08-05-2012   #7
Geo
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GTA Year: 1988
GTA Engine: 305 TPI 5-Speed Manual
Re: Headers for 5.0L / 5.7L TPI

Fred, do you mind my asking what he asks for them including the Y-pipe?
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Old 08-05-2012   #8
soarestransam19
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Exclamation Re: Headers for 5.0L / 5.7L TPI

I have the flow tech headers an y pipe on my car now nothing had to be cut up or anything only thing i did was remove the cat an put a piece of straight pipe another thing with the flow tech headers is that i had to drill the 02 sensor bung hole for the o2 sensor since im running with a tpi motor in my car if ur going carb u wont need to drill a hole or anything just install an have a great time
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Old 08-06-2012   #9
Fred91GTA
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Re: Headers for 5.0L / 5.7L TPI

Dyno Don is a member on www.thirdgen.org. He custom made these headers for my car. Other than the SLPs which are out of production and fit like crap, his are the only shorty style headers made in 1 and 3/4in size making them the largest available. As for pricing, please shoot him a PM. They are also sold at TDS, but it's cheaper if you buy directly from him.
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Old 08-09-2012   #10
southgta
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Re: Headers for 5.0L / 5.7L TPI

Do all of Dons headers come only in 1 and 3/4 seems kind of big if I had a stock engine?
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Old 08-19-2012   #11
Geo
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GTA Year: 1988
GTA Engine: 305 TPI 5-Speed Manual
Re: Headers for 5.0L / 5.7L TPI

what about Sanderson's Headers? they claim to be the smallest, tight fitting
1 3/4" header around but do they make them with the air pipes ? would need them so emission tests can be done in Ontario.....???
Thanks all !!
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Old 08-20-2012   #12
soarestransam19
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Exclamation Re: Headers for 5.0L / 5.7L TPI

Just make ur own air pipes an drill out holes into the headers then run ur pipes to each one an mig weld to seal the new air tubes to the headers
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Old 08-20-2012   #13
Fred91GTA
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Re: Headers for 5.0L / 5.7L TPI

Quote:
Originally Posted by southgta View Post
Do all of Dons headers come only in 1 and 3/4 seems kind of big if I had a stock engine?
I had them on my stock L98 and they performed beautifully. The car performed much better than it did before. Now with the hotter 350 in there, they're a perfect match.
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Old 08-20-2012   #14
92rszz4
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Re: Headers for 5.0L / 5.7L TPI

Geo
I have a set of headers put on by Dyno Don on the Camaro and the soonest I get the GTA going I'm getting pair for her. I used to have a set of the edelbrock header 1 5/8" and the were the worst modification I did to the camaro. The car will overhead, no room for them and I burn 3 set of spark plug wires with those edelbrock headers. I recommend you getting Dyno Don's costume headers they work perfect on our cars, Don also fabricated the y pipe for me.
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Old 08-24-2012   #15
Geo
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GTA Year: 1988
GTA Engine: 305 TPI 5-Speed Manual
Re: Headers for 5.0L / 5.7L TPI

For all the guys that have Dyno Dons headers on their TPI motors, do you have any pics under the hood so I can see how they look ?
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Old 08-24-2012   #16
92rszz4
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Re: Headers for 5.0L / 5.7L TPI

Their hard to see from the top but here you go, their installed in the 92 camaro (thats my daily driver)
Attached Images
File Type: jpg camaro driver header.jpg (32.0 KB, 22 views)
File Type: jpg camaro driver side.jpg (33.1 KB, 20 views)
File Type: jpg camaro passanger header.jpg (31.1 KB, 20 views)
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Old 08-24-2012   #17
Fred91GTA
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Re: Headers for 5.0L / 5.7L TPI

Here are mine with the stock heads:







And with the Trickflow heads:



Kinda hard to see in this pic:
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Old 08-24-2012   #18
Fred91GTA
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Re: Headers for 5.0L / 5.7L TPI

BTW, With AC and Emissions equipment, I can still change out my spark plugs in about an hour. FROM THE TOP.
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Old 08-24-2012   #19
89-5.7GTA
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GTA Year: 1989
GTA Engine: 350 TPI Automatic
Re: Headers for 5.0L / 5.7L TPI

Quote:
Originally Posted by Fred91GTA View Post
BTW, With AC and Emissions equipment, I can still change out my spark plugs in about an hour. FROM THE TOP.
Now that's impressive!

Anybody get the Dyno Don's without AIR tubes? Thinking about this bolt on, but it would be nice to get rid of some of the clutter around the motor and maybe change my plugs in...45 minutes? If I get Collector car plates I can get around emissions. Any real benefit to that besides de-cluttering and slight weight reduction?
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Old 08-25-2012   #20
92rszz4
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Re: Headers for 5.0L / 5.7L TPI

Quote:
Originally Posted by Geo View Post
Thanks Fred!

Is there a website for Dyno Don's headers?
When Canada, you need to go thru TDS, he has a web site

He shows them with & without AIR

http://www.top-downsolutions.com/powertrain-performance

Last edited by 92rszz4; 08-25-2012 at 10:45 AM.
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