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Old 01-27-2012, 07:39 AM
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BBC headers

Have you used one of these headers before, is there any difference? Besides primary tube size of course
Is one better than other?Fitment issues or other things to consider?
Why?

http://www.summitracing.com/parts/DTC-740-59310/

http://www.summitracing.com/parts/DOU-D320/

My car is -67 Camaro and i will be using this AGR steering box:

http://www.summitracing.com/parts/AGR-292117/

We have Dynatech headers in our SBC Camaro and they seem to be a quality parts.

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Old 01-29-2012, 06:22 AM
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Nobody used these before?
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Old 01-29-2012, 07:18 AM
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dougs are good headers, hookers are nice too.
the difference in the headers you listed is ones coated ones not..
the dynatech are stepped headers, the dougs don't list that header as stepped tube..
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Old 01-30-2012, 12:05 AM
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yes,thanks, i read about the coating difference, but what about fitment to the car?
Any issues there?
I have heard good things about Doug`s headers, but haven`t seen any of them in car before.
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Old 01-30-2012, 12:18 AM
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I had a set of Doug's Tri-y's on an 85 GMC with a sbc. They did fit pretty good but there is tons of room in there with a small block. They are expensive now though. You also might look at Patriot headers, Summit Racing sells them and they usually are made out of 16 ga. tubing.
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Old 01-30-2012, 10:10 AM
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I haven't purchased any Doug's in over 35 years, but they are one of the best built. I'm still running the same set of Doug's headers I bought back in 1975 on my '71 Camaro 427. The fit is better than anything I've ever seen, and clearances are great. I actually dropped mine in from the top by simply jacking the car up, and dropping them in from the top. I can remove starter and plugs with no issues, even easier than with the stock exhaust. Never had any leak issues either.
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Old 01-31-2012, 12:27 AM
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I think i will buy those Doug`s headers, Patriots and Hookers are thin wall tubing and thin flange with welded on a head side of the flange,i don`t want those.
Thanks.
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Old 01-31-2012, 08:23 AM
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the headers you listed are both the same 16 gauge
hooker comps arealso.. super comps(hooker) are for racing and lighter for weight reasons.. know what your buy'n..
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Old 01-31-2012, 09:38 AM
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Welding on the head side of the flange is not an issue, and even the best headers made use this. It allows the headers to be milled straight after welding, and create a perfect mating surface, plus pulls tight as the bolts are outside the raised weld area.
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Old 01-31-2012, 10:16 AM
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Quote:
Originally Posted by 1971BB427
Welding on the head side of the flange is not an issue, and even the best headers made use this. It allows the headers to be milled straight after welding, and create a perfect mating surface, plus pulls tight as the bolts are outside the raised weld area.
x2, add stage 8 bolt locks and . it not leak
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Old 01-31-2012, 11:48 AM
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I agree with 1971.....the welding on the head side is very normal and I think is better for strength and looks. All Sanderson headers are built that way but they don't dress the welds and the ports really look like chit. The Patriot headers are 16 ga. tubing and "some" have a 3/8 flange, they are much better finished than the Sanderson's and don't cost as much. The Doug's that I had were 14 ga. tubing with a 3/8 flange.....bullet proof!
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Old 02-01-2012, 12:18 AM
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I had Hedman Elite headers in my sbc Nova, they were welded on the head side, 3/8" flanges and 14 gauge tubing, pretty good headers, fitment were good but there is no bbc version of this and all others are 3/16 or 5/16 flanges and are not suitable anything but scrap
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Old 02-01-2012, 07:00 PM
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I think you'll find that BBC headers inherently seal better than SBC headers in similar brands. Mainly due to the BBC having two bolts per exhaust port, and not the sandwiched center two exhaust ports of the SBC.
Even relatively inexpensive headers with thinner flanges seal better on a BBC than they do on a SBC. 3/16" flanges will seal fine if they are true and snug.
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