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Offline Andy78TA

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Re: another header question
« Reply #30 on: November 02, 2009, 02:26:18 AM »
Alright I have finally decided that I am going to go with a set of headers for my trans am. It got pushed back unfortunately because I have had a really bad past couple months but its time to get my life back in order. I think I want to go with a set of Hedman headers because price is a concern for me. My question is what part number do I get? I checked with summit and got 2 different answers so Im not sure now. I have a 78 with the 400 and an automatic trans. Any help would be appreciated. Thanks!
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78 T/A pontiac 400- Custom Headers - 2.5 Pypes Violator header back system - Edlebrock Performer Intake - Edelbrock 1413 Carb - Head work - pro comp roller rocker - CVF bracket and pulley kit - Custom system - Recaro T/A interior

Offline jphillips3333

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Re: another header question
« Reply #31 on: November 02, 2009, 04:05:02 PM »
http://www.summitracing.com/parts/HED-28140/
http://www.summitracing.com/parts/HED-28150/

The 28150 has the 1 3/4" primaries.  The 28140 has the 1 5/8" primaries.  Is that the dilemma?

You've D-port heads, right?
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John

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Offline 72blackbird

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Re: another header question
« Reply #32 on: November 02, 2009, 05:57:08 PM »
Get the 28140- the 1 5/8" primaries will give you nice low end torque. I have Hooker Comps (also 1 5/8" tubes) w/ 2 1/2" duals and my 'Bird has nice low end power, as well as good midrange and top end. I would go with the 1 3/4" primaries if I was running a 428 or 455.

Geno
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Offline Andy78TA

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Re: another header question
« Reply #33 on: November 02, 2009, 06:44:34 PM »
Thanks, I think that was one of my issues. I don't know what shape it is.., how would I tell? Just pull the manifolds off? Thanks.
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78 T/A pontiac 400- Custom Headers - 2.5 Pypes Violator header back system - Edlebrock Performer Intake - Edelbrock 1413 Carb - Head work - pro comp roller rocker - CVF bracket and pulley kit - Custom system - Recaro T/A interior

Offline jphillips3333

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Re: another header question
« Reply #34 on: November 02, 2009, 06:45:31 PM »
No - just tell us the number in the center of the heads (above the center exhaust ports).  I'm guessing 6X.
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John

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Offline Rick

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Re: another header question
« Reply #35 on: November 02, 2009, 06:47:56 PM »
Quote from: Andy78TA on November 02, 2009, 06:44:34 PM
Thanks, I think that was one of my issues. I don't know what shape it is.., how would I tell? Just pull the manifolds off? Thanks.

Look at the heads, particularly the center 2 exhaust ports.  D-port heads look like this:



Round-port heads look like this:

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Offline jphillips3333

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Re: another header question
« Reply #36 on: November 02, 2009, 06:49:21 PM »
Yeah ... if they're the 7F6 heads, just give 'em to me and I'll send you a ported/polished set of 6X heads with a 3 angle valve job  ... and two tickets for a week long cruise.

Rick's got all the pix ...
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John

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Offline Andy78TA

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Re: another header question
« Reply #37 on: November 04, 2009, 07:49:55 PM »
haha, alright next time im home which is tonight or friday I will check. Thanks.
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78 T/A pontiac 400- Custom Headers - 2.5 Pypes Violator header back system - Edlebrock Performer Intake - Edelbrock 1413 Carb - Head work - pro comp roller rocker - CVF bracket and pulley kit - Custom system - Recaro T/A interior

Offline Andy78TA

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Re: another header question
« Reply #38 on: January 01, 2010, 08:38:21 PM »
So now that it is 3 months after I started this thread i am actually doing the install and of course, i just broke one the header bolts. I was as careful as possible but it still happened so now I have to pull the passenger head off. the question I have now is once I get the head off, how the hell do I get the broken bolt out?? also, I am having a really hard time getting to the center 2 bolts on the passenger side and the drivers side. All of the other bolts I got out but I have no clue how to get to these 4 bolts. I have both front wheels off but the A arm is in the way. Can anyone give me insight as to how to get to these?
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78 T/A pontiac 400- Custom Headers - 2.5 Pypes Violator header back system - Edlebrock Performer Intake - Edelbrock 1413 Carb - Head work - pro comp roller rocker - CVF bracket and pulley kit - Custom system - Recaro T/A interior

Offline jphillips3333

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Re: another header question
« Reply #39 on: January 01, 2010, 08:57:23 PM »
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Offline Andy78TA

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Re: another header question
« Reply #40 on: January 01, 2010, 09:20:00 PM »
Thanks,
 I am guessing just the 5 piece set should work since it is a 9/16 bolt. I see you just drill into the broken bolt with the provided bits but how does it extract?
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78 T/A pontiac 400- Custom Headers - 2.5 Pypes Violator header back system - Edlebrock Performer Intake - Edelbrock 1413 Carb - Head work - pro comp roller rocker - CVF bracket and pulley kit - Custom system - Recaro T/A interior

Offline jphillips3333

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Re: another header question
« Reply #41 on: January 01, 2010, 09:36:55 PM »
I think they've left handed threads - it grips it and you back it out.  Be patient with it ... you should get some instructions or just google it.
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John

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Offline y88rick

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Re: another header question
« Reply #42 on: January 02, 2010, 11:24:54 AM »
another case is you can pull the head and take it somewhere and they can remove that bolt for you too.
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Offline Andy78TA

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Re: another header question
« Reply #43 on: January 02, 2010, 02:35:54 PM »
Thanks, from this thread and my other one I think I might take it to a shop to have it etracted just to be safe... I still have no idea on how to get to the other header bolts though
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78 T/A pontiac 400- Custom Headers - 2.5 Pypes Violator header back system - Edlebrock Performer Intake - Edelbrock 1413 Carb - Head work - pro comp roller rocker - CVF bracket and pulley kit - Custom system - Recaro T/A interior

Offline jphillips3333

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Re: another header question
« Reply #44 on: January 02, 2010, 02:49:13 PM »
PB blast - it penetrates into the threads.  Then try the other bolts after it's soaked in ..
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John

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