i'm boosting a b20 on somewhere between 17-20lbs, with power goals of between 400-500hp.
i'm wondering if oem honda headgasket would be safe to run? or if i should order an aftermarket one such as a cometic?

 

aftermarket one would probably be a safer route since the honda one is only meant for a stock set up plus if you get it from a dealer it will still probably cost the same if not more as the aftermarket one

 

oem b20.

 

OEM

 

thanks to you both thats what i've been hearing, and leaning more towards rather than an after market one, also is nice because i get oem honda parts at discount prices lol

 

I would def go with OEM then.

 

My personal experience comes from having a b16 overheat twice due to coolant hoses exploding. OEM never failed, while a friend has had 2 cometics die from mild overheats when their hoses blew. I only know 1 person who gets hardons from cometic, but he also swears a knock sensor can kill cat converters...

 

OEM by GE 84.MM Vtec gasket

 

haha yeah thats a great reference, sorry to hear about that thou lol.
i have also had a aftermarket headgasket blow on my old b16 set up too thats why i was asking about oem...

hahaha yeah we'll just leave his opinion out of this then haha

 

so now the question i have is can i get an 84.5mm oem honda headgasket?
i cant seem to find one?
i know you buy oem oversized rings an pistons,
but idk if can get a oversized headgasket too?
any help?

 

here ya go http://www.goldeneaglemfg.com/index....roducts_id=235

I believe golden eagle takes oem gaskets and bores them out to the size u need!

Utilizes Factory OEM gaskets for optimal performance
-Machined to fit almost ANY bore size imaginable
-Used on top winning race cars the world over from Circle Track to Import Drag Racing
-Dowel holes are opened on Honda/Acura B-series gaskets to accept ANY head/block combo

 

Do aftermarket ones have metal in em like OEM?

 

thanks so much man!, thats 100% perfect

 

Are the Aftermarket Headgaskets really that bad? Was looking at getting a 2MM one from Buddy Club for my Turbo Kit.

 

from what i've heard in general, and from people that were giving me their opinions oem is the best way to go for some situations. i mean atleast with honda, reflecting back when i was looking to order bearings it was between acl and oem an i went with oem to save money an i was told by so many to use oem

 

No, not really, for increasing compression, I would go with Cometic, for any other situation, OEM by GE. IMO.

 

People have luck with both, its not a big deal. Just go with the cheapest one you can find. I got my cometic for $50

 

yeah thats true people do have luck with both thats true,
but i dont really agree that its not a big deal i mean as far as i'm concerned a good headgasket is a big deal, but i mean thats just MHO

 

Sry if I wasn't clear, you're right a good head gasket is very important. I didnt mean go cheap. I just meant get the cheapest good quality product you can find. I would buy a $75 OEM over a $100 Cometic. Both are good, I would buy on price.

 

^^ I've seen many 600+ hp builds using oem h.g cant go wrong with oem.