SBC Gen 1 headers

[Sieg]

I may need a set of headers in the near future. From my research it appears Dynatech's are the best fit, quality, and value for ceramic coated headers.

Should I be considering others?

Is the collector with ball & socket flange desirable?

My car has a 350, stock subframe, Saginaw fat steering box, manual, no a/c, AFR heads, 2.5" exhaust.
http://sieg.smugmug.com/Cars/69-Camaro/i-Qkj7ZJc/0/XL/IMAG1984-XL.jpg
Existing header is relieved at the steering box to gain 1/16" of clearance which works due to solid motor mounts.

Thanks! :thumbsup:

[Track Junky]

I like the Hooker Super Comp's. With your set up you could probably get away with 1 5/8" primaries but I would get the 1 3/4".

[sik68]

Dougs D368 headers fit my car really well, clearing the pitman arm and power steering box and werent too expensive. That's the 1-3/4 part number...the 1-5/8 header may fit even better. :cheers:

[Flash68]

Hooker Super Comps really aren't the best fitting and they hang lower than most other headers it seems. Gaetano -- whatchu talkin bout Willis? :lol:

I know Mike P (mdprovee) just switched from Super Comps to Dynatechs on his 1st gen due to clearance issues with the Tru Turn install and he gained the needed clearance there FWIW.

[Track Junky]

If there was a smiley shruggin' his shoulder's I'd use it. What can I say, for the money I like them ;)

[intocarss]

My Camaro has Hookers and the drivers side one hangs down in no mans land That is the only gripe i got

[makoshark]

Start here...

http://www.lateral-g.net/forums/showthread.php4?t=35882&page=10

...and read through my ongoing saga of fitment issues with Dynatech headers. I can show you more reference that they are incorrectly built. They should have been built with another 1/4" clearance at the #5 primary tube. The company claims that 18" from head to head is the correct measurement for the stock motor. My research and own findings prove the actual measurement is 18 1/4" for a stock motor. Motors with aftermarket heads, such as mine, yield even more clearance issues. As of right now, the company has expressed no interest in fixing or even admitting they have a problem with their headers. They also will not allow me to speak with the engineer there again that built the headers originally.

[Sieg]

What model number are headers you have?

Fitment issues like that are no fun, regretefully I'm finding these old cars vary quite a bit dimensionally. I'm surprised no manufacturer hasn't came out with a model that utilizes oval or rectangular tubes in that area.

[makoshark]

I have the 310 part # headers, which are supposed to fit the DSE steering box. You may not have any fit issues with them in your application though. They are an extremely nice and heavy duty header, they just don't fit as advertised in my application.

[Rod P]

is there a reason you want Long Tube Headers?

[Sieg]

is there a reason you want Long Tube Headers?Nickel and diming HP. :) Ideally I'd like a manifold like the ZL1 uses.

[makoshark]

I just read in your build thread that you just bought a Lee box. The Lee 670 box is the same box as the DSE box, according to Lee when I spoke to him last week. If you were to purchase the Dynatech headers, you'll need the same one's as I have. Although, I'm running the 1 3/4" to 1 7/8" headers. The Dynatech headers will touch the steering box on your car with stock heads, so you will still have to clearance the header, aka dimple. There isn't enough meat on the box where it interferes with the header to make any clearancing on it. Dynatech needs to recognize the problem with their headers and correct it.

[Sieg]

I just read in your build thread that you just bought a Lee box. The Lee 670 box is the same box as the DSE box, according to Lee when I spoke to him last week. If you were to purchase the Dynatech headers, you'll need the same one's as I have. Although, I'm running the 1 3/4" to 1 7/8" headers. The Dynatech headers will touch the steering box on your car with stock heads, so you will still have to clearance the header, aka dimple. There isn't enough meat on the box where it interferes with the header to make any clearancing on it. Dynatech needs to recognize the problem with their headers and correct it.I actually have an 800 Series 30 spline steering gear. Summit specifically notes certain headers work work with it. "Will not fit 825 Saginaw style power steering box."

http://sieg.smugmug.com/Cars/69-Camaro/i-MLfz4z2/0/L/IMAG1981-L.jpg

[makoshark]

I can't answer if Dynatech's fit the 825 box, but I can take whatever measurement you want to help:) Just let me know

[64pontiac]

So not to start an argument here, but I gotta play devil's advocate.

We use Dynatech ALL the time because they fit amazing compared to every comparable brand I have found....... here is a pic of the box clearance on a 69 camaro small block with dynatech headers. Sorry all we did was install headers, so its not the nicest engine bay! Oh by the way they even drop in from the top. I know its a stock box, but look at the clearance! I would venture to say no problem with the lee box.

As far as the ground clearance, I find they are very good compared to alot of other brands. Depending on your driveline angle (if it is not a stock crossmember and has a bit tighter an angle) you will have a ton of ground clearance, even on a low riding car. Trust me even spending over a grand on Stainless works wont net you any more!

http://i1204.photobucket.com/albums/bb407/HPIcustoms/Dynaecht/webheader1.jpg

http://i1204.photobucket.com/albums/bb407/HPIcustoms/Dynaecht/webheader2.jpg

[makoshark]

Your welcome to come over and see all the clearance issues, as well as communications I have had with the company.

So not to start an argument here, but I gotta play devil's advocate.

We use Dynatech ALL the time because they fit amazing compared to every comparable brand I have found....... here is a pic of the box clearance on a 69 camaro small block with dynatech headers. Sorry all we did was install headers, so its not the nicest engine bay! Oh by the way they even drop in from the top. I know its a stock box, but look at the clearance! I would venture to say no problem with the lee box.

As far as the ground clearance, I find they are very good compared to alot of other brands. Depending on your driveline angle (if it is not a stock crossmember and has a bit tighter an angle) you will have a ton of ground clearance, even on a low riding car. Trust me even spending over a grand on Stainless works wont net you any more!

http://i1204.photobucket.com/albums/bb407/HPIcustoms/Dynaecht/webheader1.jpg

http://i1204.photobucket.com/albums/bb407/HPIcustoms/Dynaecht/webheader2.jpg

[makoshark]

See where my interference issues are and notice how the header flange is still not completely mated to the head. This is with the DSE box, which the company says they redesigned the headers to fit. They still do not fit without dimpling the #5 primary.

[Sieg]

Thanks Tyler.

[TheJDMan]

I also have a SBC Gen1 with 168 tooth flywheel. My Dynatech headers did not clear the stock style starter. I cut the flange off of an old set of Hookers that I was scrapping and used it as a spacer between the right head and header to move the header out 1/4". Not exactly high tech but it has worked for 3000 miles with no leaks and was the best option available since Dynatech did not seem to care when I contacted them. I don't understand why Dynatech didn't simply add an extra 1/4" to the primary tubes so the header would work for both 153 tooth and 168 tooth flywheel applications.