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Silicone Around Intake Coolant Ports Or Not (5.7 Vortec)


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Posted

I'm working on intake manifold replacement on a 1996 5.7 vortec motor. The intake manifold has light aluminum pitting and the heads have very little if any. I've read that some people apply rtv or silicon around coolant ports, what is everyones real word experience on this?

 

I'm going to use the Fel-pro MS98000T PermaDryPlus.

 

Thanks for any help you can provide!

Paul

Posted

I have always put a very small smear of rtv around the coolant ports and have never had one come back. torque to proper specs to ensure no comebacks.

If the pitting is very bad I use some JB Weld and build it back up.

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