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Head gasket size

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Old Mar 16, 2018 | 03:44 PM
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Default Head gasket size
soo I bought a built b16 off my buddy and I’m redoing the head and need a headgasket. I’m not sure of the bore size and am stuck on what size gasket to get. I was told there are 81mm arias pistons in it. I went to measure the bore size on the old gasket with a caliper but I keeping getting weird number like 75mm and no where even near stock size. Am I measuring right? What should I do.
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Old Mar 16, 2018 | 06:23 PM
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Default Re: Head gasket size
Originally Posted by boostedblue23
soo I bought a built b16 off my buddy and I’m redoing the head and need a headgasket. I’m not sure of the bore size and am stuck on what size gasket to get. I was told there are 81mm arias pistons in it. I went to measure the bore size on the old gasket with a caliper but I keeping getting weird number like 75mm and no where even near stock size. Am I measuring right? What should I do.
A stock b16 OEM head asket. This is a no-brainer
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Old Mar 16, 2018 | 07:41 PM
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Default Re: Head gasket size
Ok soo oem size. Thanks
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Old Mar 16, 2018 | 09:55 PM
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Default Re: Head gasket size
Originally Posted by boostedblue23
Ok soo oem size. Thanks
81mm
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Old Mar 17, 2018 | 03:50 AM
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Default Re: Head gasket size
Originally Posted by JRCivic1
81mm
anyone recommend any certain headgasket. Going on a 500whp setup.
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Old Mar 17, 2018 | 12:36 PM
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Default Re: Head gasket size
OEM Honda, the factory head gasket is good to 82mm bore.
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Old Mar 18, 2018 | 07:21 AM
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Default Re: Head gasket size
Originally Posted by boostedblue23
soo I bought a built b16 off my buddy and I’m redoing the head and need a headgasket. I’m not sure of the bore size and am stuck on what size gasket to get. I was told there are 81mm arias pistons in it. I went to measure the bore size on the old gasket with a caliper but I keeping getting weird number like 75mm and no where even near stock size. Am I measuring right? What should I do.
This is probably a stupid question considering how difficult it is to confuse the two engines, but you are SURE you have a B16 and not a D16, correct? It is DOHC and not SOHC?

I only ask because the D16 has a 75mm bore diameter.
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Old Mar 18, 2018 | 04:57 PM
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Default Re: Head gasket size
Originally Posted by DumpdEJ6
This is probably a stupid question considering how difficult it is to confuse the two engines, but you are SURE you have a B16 and not a D16, correct? It is DOHC and not SOHC?

I only ask because the D16 has a 75mm bore diameter.
lmao yeh b16 fully built making around 500whp. I was probably measuring wrong.
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Old Nov 1, 2018 | 01:07 PM
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Default Re: Head gasket size
Originally Posted by TheShodan
A stock b16 OEM head asket. This is a no-brainer
Originally Posted by civic-steve-94
OEM Honda, the factory head gasket is good to 82mm bore.
I'm assuming the same holds true for D-series engines as well? OEM gasket is good up to 76mm bore?
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Old Nov 2, 2018 | 09:50 AM
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Default Re: Head gasket size
I would stick with OEM, if you are going up in size GE is a good choice
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