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06-21-2016, 01:22 PM | #1 |
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Join Date: May 2016
Location: Pa
Posts: 1,278
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369 with A/C Header question..
69 396 with a/c
will the headman mid length headers work or do I need to stick with factory manifolds.... Thanks
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06-21-2016, 03:01 PM | #2 |
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Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,387
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Re: 369 with A/C Header question..
Not sure on a 69. I have a 68, and it's been apart a long time.
I do remember a power steering bracket attaches to the very front exhaust manifold/header bolt, on driver side, obviously... The exh manifold is 3/4-1" thick, and the header is only as thick as the header flange, which is only 1/4-5/16" thick. A spacer needs to be inserted between the header and the bracket to properly function. How I know this, I had a cheap set of black jack headers, years ago, did not have a spacer...I corn cob engineered it some how, but it needed something way better. I have a set of Hooker headers for it, when the comes to re-install the 396, it WILL have a spacer made for it!!! Adapters and brackets for headers for these early pickups are essentially non existent, partly because of the rarity of a big block in these pickups and the knowledge of the vehicles. Brackets for 73-up big blocks were improved and way better, and I assume the header builders assume that headers for 68-72 big blocks might be mostly for racing applications, where P/S brackets don't apply...who knows... |
06-21-2016, 06:55 PM | #3 |
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Re: 369 with A/C Header question..
Gotcha.......
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06-21-2016, 07:40 PM | #4 |
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Join Date: Sep 2011
Location: Ark City, Kansas
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Re: 369 with A/C Header question..
Could some of you that have P/S post some pictures of the P/S bracket with headers, and with stock manifolds?
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06-21-2016, 08:04 PM | #5 |
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Join Date: Dec 2007
Location: Nanaimo B.C.
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Re: 369 with A/C Header question..
http://67-72chevytrucks.com/vboard/s...d.php?t=672505 I hope some the info here may help you
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I was hooked on these trucks since 1982 when I drove my budys fathers 1968 Custum GMC 396 automatic dana 60 rear with a power lock diff what a ride more fun then we will we can ever tell!! |
06-22-2016, 09:57 PM | #6 |
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Join Date: Apr 2007
Location: pasadena,TEXAS
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Re: 369 with A/C Header question..
I just put Hedman mid length on my 402 in my 71 with ac. A heat shield on the passenger side had to be taken off and the mechanic said he had to make a small dent in one tube on the drivers side, other than that they fit and sound great. I can take some pics tomorrow if you want to see them. I am very happy with them though
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1971 Cheyenne SWB 402BB, 700R4, 3.73 posi, PS, PB, A/C, Tilt, Tach "Wanda" Don't argue with idiots, People watching may not be able to tell the difference... There's someone in my head........But it's not me...... cheap tricks thread great info here!! http://67-72chevytrucks.com/vboard/s...d.php?t=489394 |
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