Head gasket thickness

which is the oem head gasket thickness, 1,6?

Nick

Nick,
OEM is 1.9mm before tighten it.

Once we discussed this here.

thanks Juan,

I think I'm getting too old and Alzheimer is knocking at the door.

Nick.

BTW, what do you, or someone else, think of mounting a 1,6 head gasket?
Is there need to modify the boost pressure to lower levels, if such a gasket is mounted in an oem engine? I read something like that in an another post - not here - but I do not remember where.

Nick

CR will be slightly modified, and fuels are now better than in 90?s.
I?d only play a little with ignition timing, but just for getting the best of it.

I found my notes.
They were talking about 1.4 head gasket and a not to go to 'extreme' turbo boost levels, in an Lancia evo1. Probably not my case.

Anyway, thanks for the note Juan

Nick

i have measure one used
and the thickness is 1.4mm to 1.5mm and in some corners 1.6

Quote:

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Originally Posted by na15575

i have measure one used
and the thickness is 1.4mm to 1.5mm and in some corners 1.6

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thanks Nick,

well, the oem thickness is 1,9mm and the 'grA' headgasket is at 1.6mm.
Finally, found my notes and I belive it goes something like :
- 1,9mm cr: 7.85/7.9:1
- 1,6mm cr 8/8.05:1
- 1,4mm cr 8.1/8.15:1,
if the engine head was rectified once of twice {loosing no more than 1/10th}.

Nick

oem CR is 8.0 with 1.9mm head gasket not tightened.