Headgasket questions

Koenigturbo

Active Member
Oct 4, 2006
1,337
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Oxnard CA
I could be wrong: I would guess that you would have to shave head/ block first then figure out what gasket you need, not gasket first and then shave. Are you trying to acheive a certin compresion ratio or stock? I'm a noober myself, if I'm wrong then, someone else should answer this.
 

I6Boost

New Member
Apr 14, 2010
182
0
0
My Supra
Stock headgasket is 1.37 Compressed, so if you wanted to do a 1.2mm MHG, In order to keep regular compression they would
need to add to your block...

Can you elaborate on why you can only use a 1.2? Or why you wanna use a 1.2?

The Dragon;1550633 said:
How much would i need to shave the head in order to fit a 1.2mm metal headgasket? or would i need to shave the block as well? anything else id need to do?:1zhelp:

Shave both, no reason to skimp out on anything if your already going this far man...
I've heard of "SOME" people getting by with just resurfacing the head, but seriously why take the chance?
Do it right, and do it once.
 

ben1984j

New Member
Jan 18, 2009
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Ft. Collins, CO
As mentioned, you don't take material off the head to fit a certain gasket, it's the other way around. You generally want to take off only the minimum amount of material required to get a flat, smooth surface...that's why the process is also called "resurfacing."

Even if you were trying to raise compression from stock, as I6Boost pointed out 1.2mm is thinner than the stock HG...with that gasket you're already above stock compression even before shaving the head.
 

IJ.

Grumpy Old Man
Mar 30, 2005
38,728
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62
I come from a land down under
I6Boost;1552601 said:
Stock headgasket is 1.37 Compressed, so if you wanted to do a 1.2mm MHG, In order to keep regular compression they would
need to add to your block...

Can you elaborate on why you can only use a 1.2? Or why you wanna use a 1.2?



Shave both, no reason to skimp out on anything if your already going this far man...
I've heard of "SOME" people getting by with just resurfacing the head, but seriously why take the chance?
Do it right, and do it once.

ben1984j;1552841 said:
As mentioned, you don't take material off the head to fit a certain gasket, it's the other way around. You generally want to take off only the minimum amount of material required to get a flat, smooth surface...that's why the process is also called "resurfacing."

Even if you were trying to raise compression from stock, as I6Boost pointed out 1.2mm is thinner than the stock HG...with that gasket you're already above stock compression even before shaving the head.

Thanks guys you make my job easier :D