BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
 
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sdstick

sdstick

Posts : 4292
Join date : 2009-03-20
Location : Revere, MA

Header gaskets Empty
PostSubject: Header gaskets   Header gaskets EmptySun Mar 17, 2013 10:55 pm

Anyone ever find a secret sauce that can be applied to header gaskets to get that 100% garaunteed seal?

I know I probably over torqued the header (because I HATE exhaust leaks) causing leaks under #3 & 5 ....but I want QUIET this go round


What cha know?

_________________
Steve
Header gaskets Impala2010002

96BBB 28K 3.42 Bolt-ons
95BBB 100K 3.73 383 New DD...already broke fixt the 4L60E twice
95 Black WB4 Hole...ee...grail
96 Black WB4 No holes in this
95BBB 189K 3.08 Old DD Stolen...by Matt. Cool
Whine..eee...Silver LS6
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toomanytoyz
Club President
toomanytoyz

Posts : 6880
Join date : 2009-01-20
Age : 43
Location : East Hampstead, NH USA

Header gaskets Empty
PostSubject: Re: Header gaskets   Header gaskets EmptySun Mar 17, 2013 10:57 pm

I use the Percy's aluminum ones. They are like 5 or 6 pieces of thin aluminum (like foil) that compress as you tighten em up. I've had very good luck with no leaks.

_________________
Bill "The Verb" Crovo - Resident Car Slut & Unicorn Hunter
Header gaskets ToastedSig_zps6c195980
A Toasted Marshmallow, A Long German, A Lame Suburban and expensive dreams...
Missing all my previous B's, D's and V... Sad
American Ricer
www.badassofne.net
"Ooooh! Look! Something shiny!"
NO MORE UNICORNS!!!!!

LOWER IT!!! Wink
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http://impalass.uniquekind.net/
Ironfistdog

Ironfistdog

Posts : 2140
Join date : 2011-01-11
Age : 37
Location : Warren, MA

Header gaskets Empty
PostSubject: Re: Header gaskets   Header gaskets EmptySun Mar 17, 2013 11:57 pm

I got a set of those aluminum ones in my garage, they fought me for 40 minutes trying to install the headers on my c10, you want them you cN have them steve.

some one told me once to use that copper spray gasket on the gaskets but ive never done it,
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V8Killer

V8Killer

Posts : 1691
Join date : 2009-03-12
Age : 48
Location : Southern, NH

Header gaskets Empty
PostSubject: Re: Header gaskets   Header gaskets EmptyMon Mar 18, 2013 3:32 pm

sdstick wrote:
Anyone ever find a secret sauce that can be applied to header gaskets to get that 100% garaunteed seal?

I know I probably over torqued the header (because I HATE exhaust leaks) causing leaks under #3 & 5 ....but I want QUIET this go round


What cha know?


When you find out let me know.

Never had anything that was 100% positive.

Make sure to check the the header flange with a staright-edge. They will NEVER seal if the flanges are bent. elephant
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sdstick

sdstick

Posts : 4292
Join date : 2009-03-20
Location : Revere, MA

Header gaskets Empty
PostSubject: Re: Header gaskets   Header gaskets EmptyMon Mar 18, 2013 4:08 pm

Based on my use of Earls pressuremaster & the SCE coppers, I have to assume operator error
See....I figured tighten those mofos so they'll never leak (it being 1/4" thk material)
Gotta assume based on the location of the bolts on the centerline & the leak UNDER 2 cylinders, I OVER torqued
Wont make that mistake again.
BTW these were Dans Stainless Tri Y's so......yah....I'll be checking surface flatness & RE-surfacing if required this time

_________________
Steve
Header gaskets Impala2010002

96BBB 28K 3.42 Bolt-ons
95BBB 100K 3.73 383 New DD...already broke fixt the 4L60E twice
95 Black WB4 Hole...ee...grail
96 Black WB4 No holes in this
95BBB 189K 3.08 Old DD Stolen...by Matt. Cool
Whine..eee...Silver LS6
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toomanytoyz
Club President
toomanytoyz

Posts : 6880
Join date : 2009-01-20
Age : 43
Location : East Hampstead, NH USA

Header gaskets Empty
PostSubject: Re: Header gaskets   Header gaskets EmptyMon Mar 18, 2013 8:31 pm

I've had good luck with the Mr Gasket Ultra Seal ones, too.

Stay away from the copper gaskets, I've never been able to get those to work!

And those Percy's ones I mentioned... I've reused them a couple times and they still didn't leak.

_________________
Bill "The Verb" Crovo - Resident Car Slut & Unicorn Hunter
Header gaskets ToastedSig_zps6c195980
A Toasted Marshmallow, A Long German, A Lame Suburban and expensive dreams...
Missing all my previous B's, D's and V... Sad
American Ricer
www.badassofne.net
"Ooooh! Look! Something shiny!"
NO MORE UNICORNS!!!!!

LOWER IT!!! Wink
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http://impalass.uniquekind.net/
96slowss

96slowss

Posts : 855
Join date : 2010-06-09
Age : 31
Location : Halifax,MA

Header gaskets Empty
PostSubject: Re: Header gaskets   Header gaskets EmptyTue Mar 19, 2013 8:16 pm

I have the percy's as well. same ones for over 2 years with my headers, never had a leak
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