project-boosteD

whats up whats up

my set up:
darton sleeved 81.5mm gsr block
built type r head
cp 9:1
450whp at 17lbs

hp goals: 550 daily driven and 600+race gas 25psi max


what options for headgaskets are there... i am currently using a cometic .027 mls headgasket but i feel like its failing... i'm spitting coolant into my res tank under load and i just wanted to get a feel for what is good out there or if i could even use an OEM gasket for 81.5 bore...

yes i am going to change my rad cap and thermo and do a leak down test before i come to a conclusion of the headgasket... i just want to get a feel for what options i have for headgaskets and what you guys have experienced with such brand names...

jetspeedz

golden eagle, they use oem gaskets and open then up to your size/needs

AlexDphoto

lots of people swear by the oem headgaskets. ill be going that route when my engine is redone again.

Im running cometic 81.5 with no issues so far. My car overheated once and it had coolant going into the overflow. But i turned the heat all the way up and then the car ran fine afterwards. Which lead me to believe it was a bubble in the system rather than a faulty headgasket.

project-boosteD

it's not just going into the overfow... it is spraying under load

and how are you going to use an OEM 81mm headgasket when your bore is 81.5?

EGPrelude

Golden Eagle Manufacturing machines OEM Honda gaskets to the bore that you require.
They have sizes of all ranges. www.goldeneaglemfg.com

AlexDphoto

this.

jdm-as-f@$k

not part of the subject but how do i post a thread it wont let me?

project-boosteD

sweet... well now that i know where to do get an oem honda gasket i will do that


and as for the domo guy.... at the top of the forum it says "new topic"

jdm-as-f@$k

wer is it by...stupid quetion but 4real

AlexDphoto

bro... really?


anyways. im actually having trouble locating the 81.5mm on GE's website. anyone have a direct link to it?

jdm-as-f@$k

yes really it only says thread tools search thread or rate thred

jdm-as-f@$k

well sice you guys are here anyways maybe you guys can help me out....i have b20vtec that hasnt hit vtec ever since i got it...any info

AlexDphoto

project-boosteD

there you go... now start a new thread


as for the 81.5 on ge's website... i couldn't find it either, i e-mailed them to see if they can offer that for me... they are claiming they can machine it to whatever bore size i am in need of but they dont have the 81.5 listed for sale... i'll let you know whenever i find out

95B18BTurbo

A stock 81mm gasket will work fine for a 81.5mm bore. The stock gasket is good for 81mm to 81.5mm, making it perfect for 81.5mm. I used one on my 81.5mm LS build and it held perfectly even under high boost.

projectcivicjp

95B18 is correct. A Honda OEM 81mm head gasket will work fine with no problems at all!

project-boosteD

swweeeeeettttt....

thanks to 95b18 and projectcivic

SPOOLINmatt

THIS!

AlexDphoto

cool beans!

projectcivicjp

no problem man! holler if you need any more help big dawg

wunfstgsr

You can use a oem head gasket! i use them all the time, 81.5mm is fine any more than you must get a custom hg.

95B18BTurbo

no problem! Hell I even used a cheap Fel-Pro one at that, but if you can get an OEM one from Honda I would do that instead.

SPOOLINmatt

hell i use an 84mm headgasket on an 83mm bore.

project-boosteD

looks like it turned out to be the headgasket... after i broke the thermostat out and changed my cap with a high pressure cap, its still spitting and i guess it finally mixed enough to show oil at the top of my radiator... goin to acura and pickin one up today. so sad.