Head Gaskets for S63/N63? BMW offers 2 thicknesses

JellyStyle · 02-14-2023, 06:42 PM

I wonder why BMW would make or offer two different thicknesses for the same motor confirmations..

0.75mm and 1.05mm

https://www.genuinebmwminiparts.com/...et-11127567765

https://www.genuinebmwminiparts.com/...et-11127567764

I wonder why?
That would lower compression for higher boost maybe?
Anyone have a clue?

wcs531 · 02-14-2023, 06:58 PM

I would assume its to be able to keep the same compression ratio if you have the heads/block resurfaced. If you look down below they say 1.05 (+0.3), so the 0.75 should be factory.

JellyStyle · 02-14-2023, 07:38 PM

Quote:

Originally Posted by wcs531

I would assume its to be able to keep the same compression ratio if you have the heads/block resurfaced. If you look down below they say 1.05 (+0.3), so the 0.75 should be factory.

or you can run a bigger gasket to go higher boost. lol
but yes, likely for headwork but surprised BMW would make a separate part for a rare edit, not like BMW dealers can even do headwork like that..

02-14-2023, 06:42 PM	#1
JellyStyle Builder of Special Cars 202 Rep 482 Posts Drives: G12 B7,F02 750li,E70 X5M,E46M3 Join Date: May 2013 Location: Dallas, TX \| Farmington, UT \| Gainesville, FL iTrader: (0)	Head Gaskets for S63/N63? BMW offers 2 thicknesses I wonder why BMW would make or offer two different thicknesses for the same motor confirmations.. 0.75mm and 1.05mm https://www.genuinebmwminiparts.com/...et-11127567765 https://www.genuinebmwminiparts.com/...et-11127567764 I wonder why? That would lower compression for higher boost maybe? Anyone have a clue?
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02-14-2023, 06:58 PM	#2
wcs531 Second Lieutenant 97 Rep 281 Posts Drives: E90 335xi / E70 X5d Join Date: Jul 2014 Location: Philadelphia iTrader: (1)	I would assume its to be able to keep the same compression ratio if you have the heads/block resurfaced. If you look down below they say 1.05 (+0.3), so the 0.75 should be factory.
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