67-69 Dynatech headers - Team Camaro Tech
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post #1 of 40 (permalink) Old Jan 28th, 12, 01:44 PM Thread Starter
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67-69 Dynatech headers

Just got my Dynatech headers (part# 740-11210) today and unboxed them...figured i'd show you guys all the contents and the quality of the headers if anyone is considering buying them...overall i think for $400 you really can't beat them and as many say pictures say a thousand words!

2.5" reducers, header bolts, header gaskets, alternator spacer?, flange adapters and instructions.



Passenger side header


Driver side header #1


Driver side header #2


Header flange


3" Collector


Overall i'm impressed by the quality of these headers for the price. I like the fact that the flange is one solid piece. They look and feel heavy duty.

Now i know stepped headers are a myth but the real reason why i think they step the headers is to get the angles they are looking for to wrap the headers around the steering box and overall fitment.

Should be installing them soon and see if they clear my rack and pinion setup. Cheers!

Current build summary: 69' Camaro, 383 stroker, 750 Holley DPer, DSE subframe connectors, flaming river rack and pinion, 700R4, 8.8" rearend w/ 3.73's
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post #2 of 40 (permalink) Old Jan 28th, 12, 02:09 PM
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Re: 67-69 Dynatech headers

Those really do look good! The thick flanges just say quality.

Skunk Works
302DZ, M22W Muncie, GV overdrive,12-Bolt Rear 3.73
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post #3 of 40 (permalink) Old Jan 28th, 12, 03:03 PM
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Re: 67-69 Dynatech headers

My advice, pitch the gaskets that go between the flange and the head - buy a set of Percy's and be done with it - the gaskets that came with them didn't last a week for me before they were leaking.

69 Pace Car and 69 Hard top
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post #4 of 40 (permalink) Old Jan 28th, 12, 04:05 PM Thread Starter
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Re: 67-69 Dynatech headers

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Originally Posted by srode View Post
My advice, pitch the gaskets that go between the flange and the head - buy a set of Percy's and be done with it - the gaskets that came with them didn't last a week for me before they were leaking.
read that on here as well and ordered them with the headers.

Current build summary: 69' Camaro, 383 stroker, 750 Holley DPer, DSE subframe connectors, flaming river rack and pinion, 700R4, 8.8" rearend w/ 3.73's
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post #5 of 40 (permalink) Old Jan 28th, 12, 04:24 PM
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Re: 67-69 Dynatech headers

Very nice looking set of headers. One concern about driver side header is #1 inner bolt location & #5 outer bolt being accessible for removing &/or tightening. I have a set of Hooker Competition with 3 or so which are a challenge on my sbc.

Tom Sholl
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post #6 of 40 (permalink) Old Jan 28th, 12, 04:38 PM
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Re: 67-69 Dynatech headers

No question they are the deal of the century when it comes to small block headers. Even on the larger version all the bolts are easy to get to even with 7/16" heads. The back ones can be tightened with a socket wrench which makes you wonder why all makers don't drop the back tubes straight down like that. They do seem to have screwed the pooch with the large ones now since the latest design doesn't fit with a factory sized steering box.

BTW, the spacer is used when running the factory power steering pump bracket.

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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post #7 of 40 (permalink) Old Jan 28th, 12, 06:11 PM
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Re: 67-69 Dynatech headers

are those collectors a ball socket type....they appear like them but don't seem to have as much? How is the fit of the collectors to the header and flange...does it slip over some and then seal with a gasket at the collector flange? Can you show a pic of this together...obviously not tightened up don't want you to mess up your gaskets.

"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......
Then, you have enough horsepower."
-Mark Donahue
My 67 Camaro Time Line
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post #8 of 40 (permalink) Old Jan 28th, 12, 07:36 PM
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Re: 67-69 Dynatech headers

It uses a reusable graphite type beveled donut gasket on the collector and the reducer is a flare/socket.



'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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'02 Z/28 vert-stock-sold and totaled
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post #9 of 40 (permalink) Old Jan 28th, 12, 08:40 PM Thread Starter
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Re: 67-69 Dynatech headers

Quote:
Originally Posted by Joe Harrison View Post
are those collectors a ball socket type....they appear like them but don't seem to have as much? How is the fit of the collectors to the header and flange...does it slip over some and then seal with a gasket at the collector flange? Can you show a pic of this together...obviously not tightened up don't want you to mess up your gaskets.
the graphite rings slide over the collector and is the flare/socket mating surface...the reducer goes over that assembly...the four bolt flange slides over the reducer and tightens everything down

Current build summary: 69' Camaro, 383 stroker, 750 Holley DPer, DSE subframe connectors, flaming river rack and pinion, 700R4, 8.8" rearend w/ 3.73's
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post #10 of 40 (permalink) Old Jan 28th, 12, 08:51 PM Thread Starter
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Re: 67-69 Dynatech headers

im still thinking about sending them back because it looks like the #1 tube got damaged during shipping and may have cut through the coating...sucks


Current build summary: 69' Camaro, 383 stroker, 750 Holley DPer, DSE subframe connectors, flaming river rack and pinion, 700R4, 8.8" rearend w/ 3.73's
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post #11 of 40 (permalink) Old Jan 28th, 12, 09:17 PM
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Re: 67-69 Dynatech headers

Quote:
Originally Posted by 383bowtie View Post
the graphite rings slide over the collector and is the flare/socket mating surface...the reducer goes over that assembly...the four bolt flange slides over the reducer and tightens everything down
This setup should be a leak free connection then, more like a factory connection....everyone agree

If this is the case these could be on my list as a purchase.

"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......
Then, you have enough horsepower."
-Mark Donahue
My 67 Camaro Time Line
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post #12 of 40 (permalink) Old Jan 29th, 12, 05:28 AM
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Re: 67-69 Dynatech headers

Quote:
Originally Posted by Joe Harrison View Post
This setup should be a leak free connection then, more like a factory connection....everyone agree

If this is the case these could be on my list as a purchase.
No problems with leaks on mine, they seal tight with the donut!

Mine arrived in perfect condition, that scratch while not bad is less than I would accept, I'd be trying to swap them for a replacement set too.

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post #13 of 40 (permalink) Old Jan 29th, 12, 07:50 AM Thread Starter
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Re: 67-69 Dynatech headers

Quote:
Originally Posted by srode View Post
No problems with leaks on mine, they seal tight with the donut!

Mine arrived in perfect condition, that scratch while not bad is less than I would accept, I'd be trying to swap them for a replacement set too.
yep calling Jegs today...brand new headers should be brand new!

Current build summary: 69' Camaro, 383 stroker, 750 Holley DPer, DSE subframe connectors, flaming river rack and pinion, 700R4, 8.8" rearend w/ 3.73's
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post #14 of 40 (permalink) Old Jan 31st, 12, 07:19 PM Thread Starter
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Re: 67-69 Dynatech headers

have to say im impressed with Jegs customer service on this...Fedex came to my house and picked up the package to send back to Jegs...didnt have to do anything but put it back out on the porch! no shipping charges either

Current build summary: 69' Camaro, 383 stroker, 750 Holley DPer, DSE subframe connectors, flaming river rack and pinion, 700R4, 8.8" rearend w/ 3.73's
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post #15 of 40 (permalink) Old Feb 1st, 12, 12:02 AM
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Re: 67-69 Dynatech headers

I love these headers I want to see some pics of them installed and see the fit around the steering box. Wonder if you will have to "clearance" them at all there?

"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......
Then, you have enough horsepower."
-Mark Donahue
My 67 Camaro Time Line
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