Intake Gasket Swelling
05-20-2011, 04:55 PM
#1
Intake Gasket Swelling I am pulling my motor apart to replace the lifters and I noticed the intake gaskets have swollen to about 120% of their normal size. I assume this is from exposure to gasoline that they do not see in an injected engine.
Has anyone ever had one of these fail? Since these cannot be re-used, I am considering going to paper gaskets out of fear the o ring gaskets will degrade and fail over time.
Has anyone ever had one of these fail? Since these cannot be re-used, I am considering going to paper gaskets out of fear the o ring gaskets will degrade and fail over time.
Last edited by speedtigger; 05-20-2011 at 07:04 PM.
05-25-2011, 10:37 AM
#5
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I've found on my fuel injected LS1 that whenever I pull the intake the gaskets are slightly swollen and won't go back into the groove of the intake. I can get them to push back in but they instantly pop right back out of the groove. I always thought it was exposure to a small amount of oil or something of that nature. I've been using the FAST ones and I don't know who they are made by.
05-25-2011, 12:08 PM
#7
if the intake has o-ring grooves then I would just buy the fel-pro stock replacement ones from a parts store. The super vic has to run the composite gaskets since there are no grooves present. I'm using whatever ones edelbrock suggested on their website.
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05-25-2011, 05:28 PM
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I remember you had a thread here awhile back that mentioned a magazine article where they ran good heads and a dual plane and made like 500hp. See if you can find it. They had a severe vacuum leak and used double gaskets (.045 x 2) to solve it if I remember correctly. Sorry, I can't remember if it was Car Craft or Hot Rod.
05-25-2011, 06:29 PM
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My question is weather or not you can use a flat paper style gasket on an O ring style intake and not run into leak issues between the grooves and the printo seal on the felpro intake gasket? I would try the thin gasket first. I would think that the thicker gasket is for milled heads where your intake to head alignment might be slightly off. Just my .02. Hope it helps, Eric L
06-25-2011, 11:52 AM
#11
My car has been apart for a little while. Today I started cleaning everything up for re-assembly. I found that my intake gaskets that had swollen to 120% of their previous size have dried out and shrunk back to their normal size. In fact, they look like new. Have I entered the twilight zone? Seriously though, I still do not know what this is going to mean as far as long term durability.
