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It depends really. You don't use it on the gaskets themselves. Not if you got a decent brand of gasket anyway. Some intake gasket sets are supplied with rubber gaskets for the ends. Most of the time I throw those away and use a bead of silicone instead. It stays more pliable and does a better job of sealing than those rubber ones. Even if you do use the rubber end gaskets, put a small dab of silicone in the corners where the rubber gasket and fiber gasket meet.
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Do you have to use any sealant on a small block Chevy intake bolts?
No, just under and above the intake gaskets.
Why would a 350 sbc leak from the back of the passenger head or the back of the aluminum intake after the heads been machined and the intake is new and all new gaskets what can be leaking?
Did you (whoever built the engine) use the supplied rubber gaskets for the block ends? If so, you may want to remove them and use a nice bead of Silicone Gasket maker for those, and tie into the intake gaskets as well. Those rubber gaskets like to leak badly. Just be sure NOT to use anything on the actual intake gasket whether intake side or head side and you should be good to go.
What causes water and oil to mixed in a 350 Chevy engine?
I have the same problem. The usual suspects would be the intake manifold gasket, however, it could be a cracked block or head, or uneven mating surface. Last year my 383, (stroked 350 chevy) had a problem with the driver side cylinder head. I use aftermarket aluminum heads by ProTopline. The problem was the oil drain passage in the head wore through to the water jacket and promptly destroyed the lower end and camshaft. The head manufacturer did not stand good for the issue. Anyway, I would start by changing the intake manifold gaskets. Also, do not use the rubber gaskets that come in the gasket pack as they are all but impossible to line up. Simply use a 1/4 inch bead of black RTV gasket cement on the front and rear of the block-not the paper gaskets on the sides that go against the heads. Be sure to use a little extra RTV where the paper gaskets meet the silicon beads.
Will bars intake manifold stop leak work on Oldsmobile Silhouette 3.4 engine?
You need to replace the manifold and use Felpro Gaskets.
Replacing the head gasket on a 1991 Chevy Cavalier do you need to use sealant on the gasket of the intake manifold and the exhaust manifold?
No, You don't put anything on Head, Exahust or intake gaskets. CJ actually you do put a 1/8'th inch bead of black silicone on the gasket to ensure no leaks occur and it also helps hold the gasket in place when your putting the intake manifold on. I'm a ford master technician, you ALWAYS use silicone when replacing intake and head gaskets. =DK
How should the gaskets for intake mainfold be placed on a 350 Chevy engine there are some with covers for back holes and some without the covers which ones should i use?
Sounds like you have two different types of gaskets? Use the gaskets that match your valve covers/heads. Having too many holes, or not enough will cause the gasket to prematurely fail or leak.
How much should a replacement on intake manifold gaskets in a 2002 GMC Yukon be including labor at a auto repair shop?
I just had a complete Intake Gasket Set replaced on my 2000 GMC Denali. The labor was $595.00. The Gaskets were $89.00. The shop I use gave me a $100.00 discount so the labor ended up only $495.00.
Should thermostat be replaced at the same time as the intake manifold gasket is replaced?
Yes you should replace the thermostat now to insure trouble free operation afterwards, actually as long as the main bearings were not damaged from the intake leak, you should also replace the head gaskets at this time, use only felpro gaskets and you will have troublefree performance for years to come. These are good torquey engines, gm just went cheap on the gaskets when new
Can you use a 1988 Chevy 350 heads on a 1992 block with the use of the 1992 intake?
Yes They will bolt right on with out changing anything
Torque specs for intake and heads on a 1988 Chevy 350?
i retorqued my Chevrolet heads to 90 ft. lbs. but i also found if you use the specific torque pattern the gaskets will seat better....i don't torque my intake boltsAnswer65 lb.ft.
Do I use 305 head gaskets when installing 305 heads on a stock 1964 283 or do I use 283 head gaskets?
The 283 has a larger bore diameter, so use the 283 head gaskets.
Is it safe to use super glue on silicon?
It's best to use silicone on silicon.
