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-   -   Head gasket size (https://honda-tech.com/forums/engine-machining-assembly-164/head-gasket-size-3316497/)

boostedblue23 03-16-2018 03:44 PM
Head gasket size
 
soo I bought a built b16 off my buddy and I知 redoing the head and need a headgasket. I知 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.

TheShodan 03-16-2018 06:23 PM
Re: Head gasket size
 
Originally Posted by boostedblue23 (Post 51583184)
soo I bought a built b16 off my buddy and I知 redoing the head and need a headgasket. I知 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

boostedblue23 03-16-2018 07:41 PM
Re: Head gasket size
 
Ok soo oem size. Thanks

JRCivic1 03-16-2018 09:55 PM
Re: Head gasket size
 
Originally Posted by boostedblue23 (Post 51583312)
Ok soo oem size. Thanks
81mm

boostedblue23 03-17-2018 03:50 AM
Re: Head gasket size
 
Originally Posted by JRCivic1 (Post 51583371)
81mm
anyone recommend any certain headgasket. Going on a 500whp setup.

civic-steve-94 03-17-2018 12:36 PM
Re: Head gasket size
 
OEM Honda, the factory head gasket is good to 82mm bore.

DumpdEJ6 03-18-2018 07:21 AM
Re: Head gasket size
 
Originally Posted by boostedblue23 (Post 51583184)
soo I bought a built b16 off my buddy and I知 redoing the head and need a headgasket. I知 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.

boostedblue23 03-18-2018 04:57 PM
Re: Head gasket size
 
Originally Posted by DumpdEJ6 (Post 51583953)
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.

DaX 11-01-2018 01:07 PM
Re: Head gasket size
 
Originally Posted by TheShodan (Post 51583265)
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?

jetspeedz 11-02-2018 09:50 AM
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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