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Author Topic:   headers
bhinck
Journeyman

Posts: 26
From: Lake City,Minn. USA
Registered: Sep 99

posted 12-01-2001 04:35 PM     Click Here to See the Profile for bhinck   Click Here to Email bhinck     Edit/Delete Message   Reply w/Quote
I'm going to put headers on my 68 289. I hear all the scuttlebut that they leak alot if you don't use the right technique or gaskets. You guys should know the best way to get a good seal that stays. I'd appreciate the help. I already got some headers, but that's all. thanks un advance for the help.

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Dave Witthoeft
Gearhead

Posts: 1994
From: IL.
Registered: Dec 2000

posted 12-01-2001 04:43 PM     Click Here to See the Profile for Dave Witthoeft   Click Here to Email Dave Witthoeft     Edit/Delete Message   Reply w/Quote
I've got them on my 69 with a 302. Havent had a leak problem.

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MCA# 48755
71 Mach 1
69 Fastback
92 F-150
M&M#884

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Fastymz
Moderator

Posts: 12015
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 12-01-2001 04:55 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
I used cheap headmen headers and the gaskets that come with them.Almost one year later and no leaks.The headers are the only thing on the car that dose not LEAK.

SCOOP

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65 Coupe with a 351w, RPM intake,carter625,shorty 1-5/8 headers,2.5 exhaust,Flowmasters,stock C4,peg leg 8" 2:80,Big Boss 429 hood scoop,Cragers SS,Black Suede finish.
MEM#1240

https://mustangsandmore.com/ubb/Fastymz.html

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Dave Witthoeft
Gearhead

Posts: 1994
From: IL.
Registered: Dec 2000

posted 12-01-2001 05:33 PM     Click Here to See the Profile for Dave Witthoeft   Click Here to Email Dave Witthoeft     Edit/Delete Message   Reply w/Quote
I think I read on one of these threads that you can get thicker aluminum gaskets if leaking is a problem.

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Fastback68
Gearhead

Posts: 1746
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 12-01-2001 06:20 PM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
Dave, aluminum exhaust manifold gaskets are to help dissipate heat, not to stop leaks, aren't they? I don't see how inflexible aluminum could help plug gaps.
Simon

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n2oMike
Gearhead

Posts: 1590
From: Spencer, WV
Registered: Jan 2001

posted 12-01-2001 07:11 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
Those "dead soft" copper and aluminum gaskets work pretty well. I haven't used the ones that mount to the heads, but the aluminum collector gaskets I bought for around $10 work great.

Good Luck!

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Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

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mustangs68
Moderator

Posts: 18183
From: Hampton,Virginia,USA MCA#39406 M&M #12
Registered: May 99

posted 12-01-2001 07:53 PM     Click Here to See the Profile for mustangs68   Click Here to Email mustangs68     Edit/Delete Message   Reply w/Quote
I have never had a problem with leaky headers

sam

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67coupe
Gearhead

Posts: 405
From: dallas NC usa
Registered: Nov 2000

posted 12-02-2001 02:45 PM     Click Here to See the Profile for 67coupe   Click Here to Email 67coupe     Edit/Delete Message   Reply w/Quote
same here fastymz my headmans and headman gaskets dont leak at all good luck

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Josh
67 coupe with 351c
94 Explorer
30 model A currently rustbucket
in process 67 convt with efi 5.0 and t5

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Fastymz
Moderator

Posts: 12015
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 12-02-2001 04:02 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
I check the headers bolts every two weeks or so.They have come loose once in a while.I think alot of leaks come from people not rechecking the bolts.

SCOOP.

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65 Coupe 351w, RPM intake,Carter625,shorty 1-5/8 headers,2.5 exhaust Flowmasters, C4,peg leg 8" 2:80,Big Boss 429 hood scoop,Cragers SS,Black Suede finish.
MEM#1240

https://mustangsandmore.com/ubb/Fastymz.html

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 12-05-2001 12:30 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
If you use high heat silicon with your gaskets, you should never have any leaks.

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Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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Greenstang
Gearhead

Posts: 908
From: its all a fog..
Registered: May 2001

posted 12-05-2001 01:27 AM     Click Here to See the Profile for Greenstang   Click Here to Email Greenstang     Edit/Delete Message   Reply w/Quote
I also recommend putting studs in the heads wherever you can. In my deceased 302 I managed in 4 spots on each head. I then tapped the threads in the head (with the motor complete in the car), and turned the studs in by hand. It turned header swaps into a 15 minute job. instllation could stil lbe accomplished inthe car, you just had to lossen the collector bolts.
Course, I also did wacky things like use locktite on the heder bolts to keep them from backing out
I also used ne header bolts when possible. I bought a couple packs of te mrgaket header bolts nad kept them kicking around the toolbox. I have used them in quite a few places by now. The studs came from ARP...
This was all done in my 68 coupe, using Heddmen's, the best $99 headers I ever bought....
`nuff rambling for tonight

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Marcus?
Beating the competition is where the thrill is and that pride you get. It's an ego stroke ? to make no mistake."
-Mark Martin
A computer once beat me at chess, but it was no match for me at kick boxing.

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Rory McNeil
Gearhead

Posts: 1235
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 12-05-2001 04:44 AM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
I`ve never had header gasket problems on any of my Fords. The gaskets on my 302 Fairmonts Heddman headers have been on for 7 years, the headers on my 390 powered F350 have been on for 10 or 11 years. Fords have at least two bolts for each exh port, unlike a SB Chev which has the center two tubes paired, with only 2 bolts.Big & SB Mopars as well. I would think those engines would be more prone to leaks.

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78 Fairmont 428 4 speed [email protected]
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA Stocker under construction, 302 5 speed

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JAAZZY
Gearhead

Posts: 745
From: Bay Area, CA
Registered: Apr 2001

posted 12-05-2001 08:10 PM     Click Here to See the Profile for JAAZZY     Edit/Delete Message   Reply w/Quote
Well here you go I'm the poster child for header and collector leaks. I used to have a lot of problems with this but just like Fastymz I started checking the bolts every so often and that solved it. I think it is more likely to happen if your exhaust is not well supported, I guess due to the added vibration. It also probably helps to have enough clearance so the headers don't touch other parts. I added a little bit of clearance by dinging the headers after my new motor went in a few months back and I haven't had problems with the bolts loosening since.

When I had collector leaks my muffler shop gave me some cement like stuff to put on the gaskets. It worked great. It also wasn't messy when you needed to remove the headers. It came off easy with a scraper. I don't seem to need it anymore but I'm not really sure why.

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