Head Gasket Installation - SR20DET - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s14unimog · 11-05-2009, 07:23 AM

Quote:

Originally Posted by ericb382

The FSM gives procedures for a stock HG. We are talking about aftermarket HG's. I hope you wouldn't use the FSM's torque specs when torquing down ARP head studs.... Same concept.

Like I mentioned earlier, I called Apexi (the manufacturer of my HG) and asked them what they recomend for THEIR HG. They said not to use anything. I didn't and it worked perfect. Like I also mentioned earlier, there are some instances where I would deviate from their recomendations to match a specific application, but in a perfect world (head, block and front cover machined) you don't need it.

I am very aware of the differences between this installation and that of a standard OEM head gasket. With that said, I would think a MLS headgasket could use the additional "support" to seal that area. I spoke with Cosworth USA about my application and they recommended the use of liquid gasket on the front cover. I am not the kind of individual to do motor work without extensive research.

I appreciate your input and can end this debate with a few more words.

For all who read this write up:
If you feel you don't need liquid gasket and are confident that it will not leak, then don't use it. If you feel that you might need it, use it.

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