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#1 |
Registered User
Join Date: Feb 2008
Location: hamilton, ga
Posts: 48
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rubber or cork valve cover gaskets
what do ya'll prefer & why? sb chevy.
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#2 |
Registered User
Join Date: Jun 2007
Location: Smyrna, GA
Posts: 709
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Re: rubber or cork valve cover gaskets
Rubber, the cork will split if you mess up and crank the vc's down too much. Rubber just lasts longer.
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Rottenwood Garage 1970...71...72 C1500 aka Orange aka Sideshow Bob 540 BB Straub Roller Cam, AFR Magnums, XP 950, TKO 600 2 Tons of Fun |
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#3 |
Son of a gun
Join Date: Jan 2007
Location: Hot Springs, Arkansas
Posts: 1,636
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Re: rubber or cork valve cover gaskets
I'm old shool, I like cork. It's hard to find them now though. I looked for ever for a cork trans pan gasket, finally went with rubber and it took me forever to get it to quit leaking. Snug the nuts up with cork and you can't go wrong.
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Bill BEATERS ARE NEATER |
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#4 |
Between Trucks...
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
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Re: rubber or cork valve cover gaskets
I like rubber, it lasts longer an seals better.
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Beat it to fit, Paint it to match... ![]() |
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#5 |
Nothing to see here.....
![]() Join Date: Jun 2007
Location: Shawnee, KS
Posts: 4,625
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Re: rubber or cork valve cover gaskets
I like old school cork, but you do have to watch your torque values on the cover bolts. AND you must use spreaders!!
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Doug ![]() ![]() The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson |
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#6 |
Registered User
Join Date: Apr 2004
Location: Las Vegas, NV
Posts: 2,188
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Re: rubber or cork valve cover gaskets
I prefer cork as well, with a little gasket maker... Ive just had less of them get to leaking on me. I have not had any leaks without spreaders - the torque is the key. You need less than you think
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RIP EastSideLowLife '72 C20 SWB convert. 5 lug, LS1/4l60e |
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#7 |
Registered User
Join Date: Feb 2008
Location: hamilton, ga
Posts: 48
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Re: rubber or cork valve cover gaskets
do ya'll use gasket sealer with the rubbers?
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#8 |
Registered User
Join Date: Jun 2007
Location: Smyrna, GA
Posts: 709
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Re: rubber or cork valve cover gaskets
I still use RTV sealer w/ my rubber gaskets.
__________________
Rottenwood Garage 1970...71...72 C1500 aka Orange aka Sideshow Bob 540 BB Straub Roller Cam, AFR Magnums, XP 950, TKO 600 2 Tons of Fun |
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#9 |
Registered User
Join Date: Oct 2006
Location: Washington
Posts: 316
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Re: rubber or cork valve cover gaskets
I have only used cork on mine, no leaks at all.
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1970 C10 - ECE 3.5/5 drop, dual exhaust with turbo mufflers, front discs http://67-72chevytrucks.com/vboard/s...d.php?t=272458 2000 Buick Regal GS - Supercharged 3.8 V6 240hp, 1/4 mile 15 seconds |
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#10 |
Registered User
Join Date: Oct 2005
Location: Northern Arkansas
Posts: 1,136
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Re: rubber or cork valve cover gaskets
I use Versa Chem OEM Grey Gasket Maker. No gaskets at all, and never have leaks.
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#11 |
To The Levy
Join Date: Jan 2007
Location: california
Posts: 391
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Re: rubber or cork valve cover gaskets
Rubber all the way, The cork gets hard and than loses its sealing abilty, has to be changed more often than rubber........
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#12 |
Registered User
![]() Join Date: Aug 2005
Location: Philly
Posts: 1,140
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Re: rubber or cork valve cover gaskets
No contest, rubber.
I still use RTV with it and haven't had any problems. |
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#13 |
Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: rubber or cork valve cover gaskets
Cork with metal made in between. Costs more, but worth it.....
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1997 GMC Sierra Ext 1965 Mustang |
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#14 |
and a few others
Join Date: Jun 2007
Location: Blue Ridge Mountains of VA
Posts: 5,638
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Re: rubber or cork valve cover gaskets
Use these (fabricated) and you'll never have to worry about torquing down too much again. This is what I have, except with the breather holes. The big advantage is even pressure all the way around the gasket face. High grade billet 6061 T5 aluminum. Very thick. plus, it kinda makes a SBC look like a BBC.
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Bill ![]() BlueRidgeMuscleCars.com “The greatness of a nation and its moral progress can be judged by the way its animals are treated” Gandhi Last edited by 63 & 64 Bowties; 03-28-2008 at 01:19 AM. Reason: felt like a peanut butter & jelly sandwich |
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#15 | |
Registered User
Join Date: Feb 2008
Location: hamilton, ga
Posts: 48
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Re: rubber or cork valve cover gaskets
Quote:
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#16 |
Registered User
Join Date: Dec 2003
Location: here
Posts: 5,789
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Re: rubber or cork valve cover gaskets
I like the rubber gaskets. Ive had good luck reusing them too.
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#17 |
Registered User
Join Date: Nov 2004
Location: Nebraska
Posts: 762
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Re: rubber or cork valve cover gaskets
Go rubber for the valve covers. Cork causes problems once you want to take them off for adjustments.
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#18 |
Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
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Re: rubber or cork valve cover gaskets
i prefer cork...the motor shop put rubber gaskets on my valve cover and it only lated 10,000 miles and it leaked...i used this weatherstrip adhesive for a gasket maker and the weatherstrip adhesive and the cork go good together i havent had leaks yet...my old rubber gasket was cracked and everything....i got my cork set for like $13
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1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
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#19 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: rubber or cork valve cover gaskets
I've used both but overall I prefer cork with rubber.
Rubber lasts longer but tends to leak- at least in some cases. Holds it's shape better. Cork won't last as long since it tends to harden but, with proper torque, seals better. Tends to shrink some when dry. I still use a thin layer of permatex gasket adhesive. Strictly to hold the gasket in place to the covers. FYI: Something I read recently in Popular Mechanics... Silicone based sealers can contaminate oxygen sensors in newer vehicles. The chemicals are absorbed into the oil and in turn burned in the combustion chambers. Not sure if this is true. |
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#20 |
Registered User
Join Date: Jul 2005
Location: AL
Posts: 1,828
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Re: rubber or cork valve cover gaskets
have you ever had to remove the cork ones...??? "nuff said.
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#21 |
Registered User
![]() Join Date: Aug 2005
Location: Philly
Posts: 1,140
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Re: rubber or cork valve cover gaskets
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#22 |
Registered User
Join Date: Feb 2008
Location: Madison, WI
Posts: 357
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Re: rubber or cork valve cover gaskets
Check into the Fel-Pro PermaDryPlus gaskets. They're rubber with metal re-enforcement and they're actually reusable. I just put a set on my truck. They were $21 at O'Reily's.
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