Protec head sealant?

[dirtyoz]

I have Protec rec head.
Fixed domes.
What type of sealant for the water jacket area?
Im thinking RTV red, or 518 anerobic.
Any input?

 

[Freakrider]

I have one...pro tec uses ultra black permatex hi-temp rtv silicone px #82180...

 

[Dustin Mustangs]

Yup, I called them and that's what they recommended. If you need o-rings for that head get them through mcmaster. Way cheaper than protec. I have the pn's listed in that mcmaster thread I made.

 

[crammit442]

I have one...pro tec uses ultra black permatex hi-temp rtv silicone px #82180...

That or 3bond 1211 will be the best bet.