Permatex "right Stuff", ultra copper, GM... I need to know now!!!

 

Blue stuff is for the coolant uses, id use the black stuff on the intake, the copper is for exhaust gaskets.

 

i used halymar on the intake ports and black rtv on the manifold you could also use blue rtv on the intake ports as well

 

Personally, I don't think it really matters. As long as you do it right and re-torque the bolts after so many heat cycles/miles you put on the car, it should be fine. I used Black RTV.

 

I used the Permatex Ultra black RTV back in January and its leaking again now... I did everything perfectly. I think it's the RTV and I have to get it done by Thursday night so I really need to know which sealent I can pick up tomorrow on my lunch break so I can finish it tomorrow night.

 

I used Permatex Ultra Copper, as mentioned on the Project Trans Am website.

 

Red is the High Temp stuff, and Ultra Copper is the Sensor Safe High Temp stuff.

 

i used the ultra copper last year when i did it and it is leaking again. It didnt leak for the first couple weeks but then it started again. I didnt ever retighten them , but i was going to recently , but i didnt have a torque wrench with me and they felt tight as crap? im planning on doing mine again friday