Recommend a silicon

[Tim Kay]

R & R my aluminum intake manifold to Dart aluminum block. What silicon would be recommended for the 'valley' seal.

I do not use the cork or rubber gasket supplied with the usual intake gasket kit. A fair amount of space exist between the intake manifold and the 'rail' in the valley where the manifold rest top of. A thick bead of silicon works fine if done right. Problem is I used a Permetex grey that did not cure all the way through. I am looking for a brand that will.

Thanks for any suggestions.

 

[Jack]

Hi-Temp RTV silicone works for me (the red stuff).

 

[Scott Calabro]

Tim use this;

http://www.permatex.com/products/Au..._Oil_Resistance_RTV_Silicone_Gasket_Maker.htm

I know its the same brand, but one of it's suggested applications is for just what you mention.

Plus it's what the shop used on my 289 in the valleys and the engine does not leak a drop of oil.

S

 

[Rick]

Once you use this, you'll never use silicone again:

http://www.permatex.com/products/Au...uto_Permatex_the_Right_Stuff_Gasket_Maker.htm

 

[Tim Kay]

eenie meenie mighty moe.....I'll pick one out and let you know!! thanks for the suggestions

 

[Randy V]

Once you use this, you'll never use silicone again:

http://www.permatex.com/products/Au...uto_Permatex_the_Right_Stuff_Gasket_Maker.htm

X-2... The Right Stuff ***IS*** the Right Stuff!

Make sure all surfaces are very clean (I use Acetone or Lacquer thinner) - run your bead of Right-Stuff on the rails of the block front and back, lower the intake straight down and install the bolts.
If you allow The Right Stuff a chance to cure (8 hours) before you put it to work and you'll never have a leak... I've run engines as soon as 30 minutes after assembly with TRS and still didn't have a leak, but to play it on the safe side, let it (or any) sealant cure before asking it to perform...

 

[Tim Kay]

The Right Stuff ***IS*** the Right Stuff!

Sure enough, it was a great recommendation. The 'cheese whiz' can is a great applicator as well.

Thanks guys. It now becomes permanent use item.