what headers work/fit best? - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 06-15-2012, 02:42 PM Thread Starter
 
busaben's Avatar
 
Join Date: Oct 2008
Location: anderson, al
Posts: 153
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Send a message via Yahoo to busaben
what headers work/fit best?

just found out that my doug's headers i bought 2 years ago will not fit my 67 lemans, so i gotta find some replacements. i read alot of posts and it seems like a bunch of ya'll are running hedmans and ram air manifolds, and i read that 3 tube headers are much easier than 4 tubes.

i would like to know what works well, and what to order, was looking for something ceramic coated. any help woud be greatly appriciated
busaben is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 06-15-2012, 05:24 PM
Super Moderator
 
BearGFR's Avatar
 
Join Date: Aug 2008
Location: Springtown, TX
Posts: 5,737
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 122 Post(s)
Garage
For ease of installation and fit, nothing beats the repro ram air manifolds. If you really want the extra performance of headers, I've heard good things about mad dog, but I have no direct experience with them. I've got round port Doug's on my 69.

Mad Dog Headers

Bear

BearGFR
Springtown, TEXAS
BearGFR is offline  
post #3 of 7 (permalink) Old 06-16-2012, 11:35 AM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,488
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 102 Post(s)
I've run the old Hedmanns for decades. They work well, but still require blacksmithing. They also leak when I forget to tighten the bolts routinely---- and then they burn out the gaskets. The set on my '65 was made in the '70's and they're ugly, but working fine. Best bet: factory HO/Ram Air cast. No leaks, no fuss, mo muss, and a clean install. They work well, too.
geeteeohguy is offline  
 
post #4 of 7 (permalink) Old 06-17-2012, 10:06 PM
 
leeklm's Avatar
 
Join Date: Mar 2012
Location: Mpls, MN
Posts: 417
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)


Maybe it is because I am not as tolerant as I was 20 years ago, but despise headers on a street car (unless someone else is working on the car).

There is a dyno report out there showing headers vs Ram Air manifolds on a 400hp Pontiac, and was less than 10hp difference. You can get the aftermarket ram airs for $400 or less, so even cheaper than a "good" set of headers.
leeklm is offline  
post #5 of 7 (permalink) Old 08-03-2012, 11:50 PM
 
Join Date: Jul 2012
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
how vcan i tell the difference on a set of headers for a 4 spead and an automatic. I have a 1966 gto with a 400 engine and an M20 4 spd
4chivos is offline  
post #6 of 7 (permalink) Old 08-04-2012, 06:01 AM
 
Join Date: Nov 2010
Location: Dayton, Ohio
Posts: 22
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I used the Headman's on my 68 Tempest 350 and have had no problems with them leaking. I did nave to "persuade" them a little on the driver's side to avoid touching the frame. I opted for their ceramic coated ones and they look very nice. I don't have too many miles on them yet, so only time will tell. I did replace an older set of Headman's with these and they performed well over the 20 years they were on the car. Here's are a few photos of the new ceramic ones...
Attached Thumbnails
Click image for larger version

Name:	_CLS1054.jpg
Views:	307
Size:	191.7 KB
ID:	15397   Click image for larger version

Name:	CLS_0568.jpg
Views:	182
Size:	137.9 KB
ID:	15398   Click image for larger version

Name:	CLS_0570.jpg
Views:	312
Size:	158.2 KB
ID:	15399  
digitalmanchris is offline  
post #7 of 7 (permalink) Old 08-04-2012, 10:34 AM
 
Join Date: Oct 2007
Location: Long Island NY
Posts: 4,702
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Garage
RAM AIR MANIFOLDS ! where practical....check out Ram Air restorations web site....IMHO. Eric



Eric Animal is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



Similar Threads
Thread Thread Starter Forum Replies Last Post
got a little work done today. floor work virginiavenom 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 21 07-02-2011 12:06 AM
Anyone know if these will work? CrazyAL Wheels and tires 3 03-29-2006 02:34 PM
Will these work well? putergod Intake and Exhaust Discussions 6 03-24-2006 11:15 AM
Does it work? Sylvia Holden Test Forum 1 02-17-2005 09:28 PM
[Freebies] How they work, why they work & how to work them. Last The Lounge 1 01-09-2005 07:15 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome