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#1 |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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Collector Gaskets?
Anybody found any luck with some good thick collector gaskets? My driver side keeps leaking on me. The flange looks good and it's tight all the way around. I've been using aluminum 1/8" thick gaskets you get at O'Rilley's and they will last for a few days but then keep leaking. Anybody got a solution of another gasket other than welding them up?
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1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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#2 |
18 Till I Die
Join Date: Mar 2005
Location: Alberta, Canada
Posts: 1,522
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I got the grey paper with metal inside and never had a problem, even reused them once. Another option is cuttin off the flange and using a big slip clamp like they use on Big trucks
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2011 GMC Acadia 1969 GMC BBC LS7 2007 GMC Crew Duramax 1987 Camaro Iroc 350 Tuned Port Injection 42000Km 1987 Chevrolet Silverado 350 TBI 1987 Chevrolet Silverado 350 TBI(yes 2) Take me drunk, I'm too home... ![]() |
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#3 |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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I've had those when I first mounted the headers and didn't last too long. Then I went to these and lasted for a long time but just in past few weeks been getting worse.
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1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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#4 |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Is there another reason they keep leaking? Maybe you have an exhaust mount that is broken causing excessive flex in the system....
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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#5 |
No No
Join Date: Jun 2005
Location: Pueblo Colorado
Posts: 1,781
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I use the Percy gaskets all around, Flowtech dead soft aluminum are the same thing. If I remember right the collector flange gaskets were $18 at Advanced and they come with new bolts.
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1976 Custom Deluxe SWB Med FMB.3/4 Drop. Gen VI 454, Muncie HD 3 speed With Modified OE Hurst Shifter, 3.73 12 bolt, GMPP HO roller cam, Hooker headers, Performer intake with modified Q-jet, Accel distributor. Best 1/4 12.3 @108. Funnest run 19.84 @88 full 1/4 mile burn out. 1997 K1500 ext cab 5.7 stock except muffler |
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#6 |
california fill
Join Date: Apr 2004
Location: Sunny So-Cal
Posts: 694
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ive had good luck doubling up the mr gasket paper (?) ones on each side....
pc |
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#7 | |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
|
Quote:
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1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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#8 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Use FELPRO collector gaskets, double up the gaskets and coat them with "CopperCoat" gasket sealer. The sealer will give a coating that makes them seal and last longer.
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#9 |
I'm back with 2nd truck!
Join Date: Feb 2002
Location: Texas
Posts: 3,775
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I've thought about doubling up but the trouble is that it's hard to get one in there and even harder to double up but I may have to if the flex is not the problem.
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1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson |
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