Head gasket bore size on stock motor?

[B-lackGSX99]

I've got a leaking / blown head gasket and am going to be replacing it with a new cosmetic head gasket from extreme psi along with a set of arp head studs. The only thing I don't get is what "bore size" I should order. My motor is all stock (aside from the HKS 272/272 cams, my profile is up to date), should I just order the 85.5mm?? 86mm?? 87mm?? I would just order a standard MLS head gasket from another site, but extreme psi does the arp head studs combo for a great price, so i'd like to just order them from the same site. I have searched quite a bit and have been unable to come up with explanations or answers. Should I just forget it and order a standard head gasket from another site, and then just get the head studs from extreme psi?? Greatly appreciate your help!

 

[crensinivon]

you just want the standard cometic headgasket the others are for overbored applications.

 

[97 4G63]

(cometic) head gasket don't come in stock bore..
I would sudjest you get the mitsubishi metal head gasket it works just as great.
Also the stock bore is 85mm

 

[16g-2ndgen]

the stock bore is 85mm

just get the oem hg (composite/metal) which comes in stock bore, and the arp studs of course. best match EVAR!!1

 

[B-lackGSX99]

Will do, thanks guys. I'll just tell the shop to order the head gasket straight from the dealership, and I already have the arp head studs coming in the mail! Let's hope that my issue is indeed a blown head gasket! In case this is useful to anyone else, my symptoms are (in order):

1) Black exhaust / oil on front passenger side of motor.
2) Idle surge at idle (1000 - 1250 rpm jumps ever second)
3) Loss of oil.
4) White smoke coming out of tailpipe when stopped and at operating temperature.
5) Temp gauge maxes out. (only let this happen once, and temp becan decreasing after 5 minutes).

 

[crensinivon]

Check out this thread if there was antifreeze in your oil. Right now is a good time to replace bearings and rings.

http://www.dsmtuners.com/forums/newbie-forum/303405-7bolt-motor-seized-low-rpm-after-minor-work.html

 

[tkelly27]

Check out this thread if there was antifreeze in your oil. Right now is a good time to replace bearings and rings.

http://www.dsmtuners.com/forums/newbie-forum/303405-7bolt-motor-seized-low-rpm-after-minor-work.html

+1

Shortblocks hate that chocolate milkshake crap.

 

[25391tally]

i am in the same predicament will the 85.5 work ?

 

[e85_4g63]

i am in the same predicament will the 85.5 work ?

Yes it will