Quick intake gasket question. . .

[terrible one]

Sorry about this, but I'm topping off my 383 with a Performer RPM and am getting the gaskets, etc. and was wondering if I just need to get the pan or if I need that as well as the other gaskets?

[mally69]

On my 440 i use just the valley pan but i put silicone around the ports to make sure it seals

[mally69]

Almost forgot..  I put that silicone on both sides of the pan to make sure it seals.

[Paul G]

The valley pan wont fit with gaskets. Believe me, I tried.

[terrible one]

Right on, valley pan and silicone it is. Thanks!

[charger2fast4u]

are you's saying if you use this gasket kit you can only use either the gaskets or the valley pan  https://www.jegs.com/webapp/wcs/stores/servlet/productitem_10001_10002_746656_-1_29702

[Paul G]

I wrestled with the intake for a whole afternoon before I got on here to ask why I could not get the intake manifold bolts holes to line up with the head. The answer was not to use the valley pan gaskets. Just put a coat of sealer on both sides of the valley pan, no gaskets, and everything will line up. And it did.

[4aThrill]

did you have a buddy helping you out, if you get your buddy to stand on the manifold the bolts will go in. I didn't do this on mine but did it on a challenger.

[Nacho-RT74]

ok guys, juts to clear up... the valley pan IS ACTUALLY THE GASKET ITSELF !!! no need for extra gasket, just add some sealer if you are worried about... Althought I used, I wouldn't use anymore silicone since melts down slowly with gas. there is another kind of sealers what in fact gets a thin layer, more thin than silicone itself. I don't recall the name, but is the same I'll use to metallic head gaskets

[john108]

Hi
Does anyone know the actual brand name/part number of the silicone sealer used.  There are many available, even from the same manufacturer?
John

[charger2fast4u]

why does the kit come with the valley pan and gaskets if the valley pan itself is the gasket? is the best thing to do to just use the valley pan and some sealer and leave out the gaskets?

[Nacho-RT74]

You'll never find out on a Mopart parts catalog those gaskets, same as exhaust gaskets. They are UNEXISTANT On Mopars Catalogs.

Is like try to fit a regular gasket on to a metallic headgasket FOR BETTER SEAL!!!!. 

Exhaust gasket are a little bit more logical on aftermarket pieces being the exhausts, get warp and rusted with time because the heat and enviroment... but not intakes.

maybe if you milled down the intake ? 

[hutch]

make sure you let the permatex setup for a few hours before you tighten down the pan.  Put the beed down on the block and both sides of the pan and then get bolts that hold the bars and manafold a little better than finger tight and let it set for a few hours before you take her down all the way.  You dont want to to torque it down all the way till the silicone sets up.

[terrible one]

Great information guys. Still, I think I'm just going to use the pan and the sealer. Great tip hutch. As I recall, the Cadillac didn't have gaskets either when I tore it down, just the pan. 

[Rolling_Thunder]

The valley pan wont fit with gaskets. Believe me, I tried.

yes it will - you need to get ulta thin gaskets - then you can sandwich one abover and below the valley pan...     works great with aluminum head/intake combinations   

[hutch]

The valley pan wont fit with gaskets. Believe me, I tried.

yes it will - you need to get ulta thin gaskets - then you can sandwich one abover and below the valley pan...     works great with aluminum head/intake combinations   

I use just one off the pair that comes with the pan and it works ok with the permatex.  I put one of the gaskets between the head and the pan.  I gave up long ago using both sets on both sides of the pan. Works pretty well for me.

[terrible one]

I've just got iron heads and then an aluminum intake (performer RPM) . . .

[Nacho-RT74]

I would love to know if somebody REALLY have had some leak issue with valley pan without gasket to REALLY make a big trouble about this I still haven't known any guy with leaks problem using just the valley pan.

[mally69]

If somone is having a servere problem trying to get that to seal up with just the tin valley coverand permatex, then I would have to GUESS the head's were decked on he11 of alot to throw the angle's off. Or there is a problem with the angle of the intake.

[Nacho-RT74]

I still haven't know any problem with Mopars here about that, even with heads milled down... and have several buddies with that kind of job!

[Joshua]

I would love to know if somebody REALLY have had some leak issue with valley pan without gasket to REALLY make a big trouble about this I still haven't known any guy with leaks problem using just the valley pan.

Yep....

I'm running the valley pan AND Mr. Gasket intake gaskets because I have thicker head gaskets which raise the heads enough that the extra gaskets are needed....I have swapped intakes many times over the years without ever changing the intake pan....never a problem. And that's with NO sealer.....
The only time the valley pan is not needed is with some aftermarket intakes that fully seal the lifter valley.....mount them just like a Chevy with reg intake gaskets and a bead of RTV along the block rails....

[71charger_fan]

I put my 400 together in '94. I couldn't get the intake on with the extra gaskets and just used sealer. I've never had a problem. I run iron heads with steel shim head gaskets.