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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 Header gaskets

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sdstick



Posts : 4278
Join date : 2009-03-20
Location : Revere, MA

PostSubject: Header gaskets   Sun 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


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


Posts : 6870
Join date : 2009-01-20
Age : 40
Location : East Hampstead, NH USA

PostSubject: Re: Header gaskets   Sun 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

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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Ironfistdog



Posts : 2124
Join date : 2011-01-11
Age : 35
Location : Warren, MA

PostSubject: Re: Header gaskets   Sun 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



Posts : 1691
Join date : 2009-03-12
Age : 45
Location : Southern, NH

PostSubject: Re: Header gaskets   Mon 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



Posts : 4278
Join date : 2009-03-20
Location : Revere, MA

PostSubject: Re: Header gaskets   Mon 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


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


Posts : 6870
Join date : 2009-01-20
Age : 40
Location : East Hampstead, NH USA

PostSubject: Re: Header gaskets   Mon 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

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



Posts : 855
Join date : 2010-06-09
Age : 28
Location : Halifax,MA

PostSubject: Re: Header gaskets   Tue 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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PostSubject: Re: Header gaskets   Today at 5:39 am

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