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Author Topic:   Cooper sealant on headers
Fastymz
Moderator

Posts: 18703
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 03-09-2003 07:40 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
I can't find the orange sealant for my headers anywere,but pepboys and the package says it's good to 650degrees.The high heat cooper stuff I have at home says it works to 750.Is there better stuff then the copper out there?

P.S.dont make fun of my spelling of copper either.

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SCOOP
oddly obsessed with big scoops on little Mustangs

2.26 60'S
14.9 @ 90.86MPH

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

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

[This message has been edited by Fastymz (edited 03-09-2003).]

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64FalconF-16
Gearhead

Posts: 196
From: Republic Of Texas!! Temporarily living in KY
Registered: Feb 2002

posted 03-09-2003 09:06 PM     Click Here to See the Profile for 64FalconF-16   Click Here to Email 64FalconF-16     Edit/Delete Message   Reply w/Quote
Ron,

you should not have to use a sealant at all unless you are doubling up on gaskets.

Use this tried and trued effort.
Header to Head:
INstall the gaskets and tighten.

Run car to operating temp.

Let cool overnight.

retighted before starting up.
repeat this two more times and your gaskets should be fine and last a long time.

Collector gaskets do require sealants. IMO you can use the copper sealant. Better yet use the soft copper gaskets and use no sealants at all!!!

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Fastymz
Moderator

Posts: 18703
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 03-09-2003 09:19 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
I have the alum collector gaskets they seem to work good.
I just asked about the headers to heads gasket sealant because I read in some old post to use alittle orange sealant.And I noticed the old gaskets I took off both sides the rear ports had some signs of blow by.My headers have the raised welded rings on them where they go to the heads.I wonder if that does not allow for a flat fit.They are hedmen headers not the most expensive but they work.
And thanks for not saying anything about my spelling of the word Copper,"cooper".

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SCOOP
oddly obsessed with big scoops on little Mustangs

2.26 60'S
14.9 @ 90.86MPH

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

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

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Rory McNeil
Gearhead

Posts: 1542
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 03-10-2003 01:51 AM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
I also have a pair of cheap Hedman headers on my 302 Fairmont, with early 351W heads. I installed the headers with nothing on the Mr. Gasket regular white header gaskets almost 10 years ago,& they have never leaked.I snugged the bolts every day for about a week, after driving the car. after a few days, the bolts never seemed to need tightening anymore, & I left them alone. Once or twice a year, I check them again, but they still seem tight. If a header gasket is going to leak, no amount of sealer will hold in hot exhaust gases under pressure. I don`t put anything on header gaskets, with no complaints.

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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
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd

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rockafellz
Gearhead

Posts: 1426
From: San Lorenzo, CA, USA
Registered: Aug 2001

posted 03-10-2003 11:11 AM     Click Here to See the Profile for rockafellz   Click Here to Email rockafellz     Edit/Delete Message   Reply w/Quote
Hooker Supercomps with Mr. Gasket header gaskets. No sealant used per M&M user's recommendations. Retighten after use twice, three times if you want to make sure.

Erik

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1966 Ford Mustang 2+2
Mine - Restomod in Progress

1966 Ford Mustang Coupe
Dad's - Original Unrestored

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