I USED A TOMEI HEAD GASKET ON MINE , AS FAR AS IM CONCERNED YOU SHOULDN'T NEED TO PUT SEALANT ON A NEW HEAD GASKET , BUT IF YOU ARE GOING TO REUSE IT , AND I WOULD THOES GASKETS AREN'T CHEAP I'D USE HYLOMAR AS PREVIOUSLY MENTIONED.
AS FOR USING MOLY LUBE IF YOUR USING HEAD STUDS THATS FINE.
BUT GETTING BACK TO IT , IF YOUR LEAKING COOLANT AND YOU HAVEN'T EVEN STARTED THE ENGINE YOU MUST HAVE A PROBLEM , I HAVE NEVER HEARD OF IT.
I HAVE HEARD OF A RB26 HEAD LEAKING COOLANT WHEN THEY ARE PORTED TOO FAR , JUST FOOD FOR THOUGHT.