Metalhead Gasket Size

[gucio]

Hi

I am in the market to buy a metalhead gasket for my gtr but when i was looking through the greenline website i found that the gasket size were either 87mm or 88mm and as we all know the standard size is 86mm. Greenline website

Can anyone tell which one of these will fit a standard gtr engine? Also which size (thickness) of headgasket (ie 1.0mm or 1.2mm) would be the optimum?

And yes i have done searches.

Cheers

[SilverECR33]

bump..

I had the same query, and im searching thru the forums now.

AFter a headgasket replacement for a RB25DET S1 94'

[STATUS]

really depends on target boost and turbo setup but 88mm bore 1.2mm cover 90% of applications.

[SilverECR33]

yea thanks, found what i was lookin for here.

http://www.skylinesaustralia.com/forums/in...995&hl=87mm

[SilverECR33]

decided on the 87mm in a 1.5. for 1.2-1.4 bar

[STATUS]

eeek that is thick... enemy of response stick with 1.2mm and a decent tuner

[1400r]

the 1.5mm will give a 25 a 8.7 comp ratio still above just what a 20 uses and with the extra cc I cant see it being a problem

[bazr33]

i have a 1.5mm metal headgasket if anyone is interested pm me

[1400r]

^ for sale or for feedback on lower comp?

[SilverECR33]

well the reason for the 1.5 was to help my standard internals live a bit longer with the new turbo setup

[msnismo]

I just got one - 87 / 1.2 mm Tomei gasket

Going on a 94 R33 S1

[Beer Baron]

silverbullet, there is no need to go 1.5mm. it's too thick for what you need.

1.2mm will still end up much thicker than a standard gasket as the aftermarket metal layer gaskets crush much less than a standard gasket. go the 1.2mm.

[Blitz]

Guico: are you rebuilding the engine or just replacing the head gasket?

As above, unless you are decking the block you more than likely don't need the 1.5mm.

Consult your engine builder/workshop to make sure you correctly match the gasket thickness/bore size to your engine.

[bazr33]

^ for sale or for feedback on lower comp?

Its for sale, but i wish i had it on my car.