ideas on high quality header gaskets
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
No question is too simple, no detail is too small.
Unless I hear a good case against them beforehand, I'm going to try a set of Mr. G's copperseals on my next installation.
http://www.mr-gasket.com/ProductDeta...inselection=2#
...with Stage-8 locking header bolts.
Unless I hear a good case against them beforehand, I'm going to try a set of Mr. G's copperseals on my next installation.
http://www.mr-gasket.com/ProductDeta...inselection=2#
...with Stage-8 locking header bolts.
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
Haven't heard of them before, but very interested in learning more about them myself. Here's a link for applications... 
http://www.holley.com/types/Pressure...er%20Seals.asp
Racer
Joined: Apr 2005
Posts: 259
Likes: 45
From: Columbus Mn
I use Percy's Seal-4-Good. No more blown gaskets, or leaks ever. I even double stacked the gaskets on my blown sbc trail/mud truck to get a bit more spark plug clearance. One of my spark plugs that kept burning through my spark plug boot. I still never had a leak. Awesome!
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
I have used Percy's soft aluminum header gaskets on two cars and they "seal for good". The soft material crushes a tiny bit, and forms around the header & exhaust ports to produce a blow proof seal. Also available in copper (more $) but Percy tech said copper is more for higher heat producing performance motors.
Two header bolts on mine loosten'd to finger tight...still NO LEAK
Eddie
Two header bolts on mine loosten'd to finger tight...still NO LEAK
Eddie
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Melting Slicks
Joined: Jun 2001
Posts: 2,266
Likes: 549
Safety Car
Joined: Oct 2000
Posts: 3,593
Likes: 103
From: Southern Indiana
If you can't get MR Gasket ultra seals and some gasket sealer to seal then you have a head or header problem!
That high price stuff is just a band aid for a real problem.
I have never had a header gasket leaking problem like some people do all the time for some reason?
That high price stuff is just a band aid for a real problem.
I have never had a header gasket leaking problem like some people do all the time for some reason?
Team Owner
Joined: Jun 2001
Posts: 23,375
Likes: 1,067
From: Virginia USA
Percy's or Earls. The best period. If you buy anything else you'll just be buying them again and again and again and again and again...........
I safety wire my bolts but there are many types of locking bolts. Get yourself a Summit or Jegs catalog or go to their websites.
I safety wire my bolts but there are many types of locking bolts. Get yourself a Summit or Jegs catalog or go to their websites.
Safety Car
Joined: Dec 2004
Posts: 4,876
Likes: 1
From: Jersey Shore Exit 98
Copper or Aluminum the only way to go. no leaks ever. I even have the metal gaskets between the headers & exhaust pipes. nothing sounds worst then an exhaust lead from a nice exhaust system.
Melting Slicks
Joined: Oct 1999
Posts: 2,581
Likes: 14
From: Tolar Texas
Another vote for Percy's.
I had a difficult time sealing my round port Headman headers to the “D” port TrickFlow heads. I tried several different types but the gasket that finally worked for me was the Percy’s seal-for-good round port aluminum gaskets.
http://store.summitracing.com/partde...5&autoview=sku
I had a difficult time sealing my round port Headman headers to the “D” port TrickFlow heads. I tried several different types but the gasket that finally worked for me was the Percy’s seal-for-good round port aluminum gaskets.
http://store.summitracing.com/partde...5&autoview=sku
Safety Car
Joined: Oct 2000
Posts: 3,593
Likes: 103
From: Southern Indiana
$50 for header gaskets????
I used the ones that came with the $89 headers, no sealer or anything and they haven't leaked or come loose!
Its kind of funny , its just a cheap small block Chevy,but put it in the high and mighty vette and it turns into the highest maintance, only the best will do money pit!!!
I used the ones that came with the $89 headers, no sealer or anything and they haven't leaked or come loose!
Its kind of funny , its just a cheap small block Chevy,but put it in the high and mighty vette and it turns into the highest maintance, only the best will do money pit!!!
Pro
Joined: Aug 2000
Posts: 713
Likes: 1
From: plymouth mass
I used to get about two or three seasons out of old style white header gaskets. I tried soaking them in water before I installed them, that didn't work. Somebody suggested I try Grey colored Felpro #1426 header gaskets (#1426 is the number for O-Ring flanges). They were cheap and have been leak free for a few years now. I might add,you should also check your header bolts frequently for tightness
Race Director
Joined: Jun 2000
Posts: 10,046
Likes: 675
From: FL
I use the Mr Gasket Ultraseals and have no problems. A thick, flat header flange is much more critical to good sealing. I have blown out the Percy's gaskets by overtightening cheap headers and warping the flanges.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
$50 for header gaskets????
I used the ones that came with the $89 headers, no sealer or anything and they haven't leaked or come loose!
Its kind of funny , its just a cheap small block Chevy,but put it in the high and mighty vette and it turns into the highest maintance, only the best will do money pit!!!
I used the ones that came with the $89 headers, no sealer or anything and they haven't leaked or come loose!
Its kind of funny , its just a cheap small block Chevy,but put it in the high and mighty vette and it turns into the highest maintance, only the best will do money pit!!!
