Notices
Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.

Need a 4G64 head gasket that supports high HP

Thread Tools
 
Search this Thread
 
Old Aug 25, 2014 | 10:36 AM
  #1  
rodent's Avatar
Thread Starter
Evolved Member
iTrader: (35)
 
Joined: Apr 2006
Posts: 700
Likes: 3
From: Highlands Ranch, CO
Need a 4G64 head gasket that supports high HP

I need a GOOD head gasket for my 2.4 LR that will support 900hp, 40-45psi of boost.

I searched and searched.

I finally came across this one from ND. Has anyone tried it or know of one that works with high boost?

http://www.norrisdesigns.com/proddet...?prod=evo-0045
These feature and conventional layering system and an EXTRA WIDE stopper sealing fold, these can be used with NO wire ring on ALL 4G64 builds and hold up to 900Hp.
Some mentioned stock 9 gasket thats bored out but where do you get those?

Update: Found Buschur can get the OEM Mitsubishi 5 layer IX head gasket, bored out for a 2.4 and thats the route I'm going.

Last edited by rodent; Feb 18, 2015 at 09:00 PM.
Reply
Old Aug 25, 2014 | 12:06 PM
  #2  
94AWDcoupe's Avatar
Evolved Member
iTrader: (125)
 
Joined: Sep 2003
Posts: 4,837
Likes: 30
From: Tampa
that nd gasket looks like overpriced comitec.
Reply
Old Aug 25, 2014 | 12:18 PM
  #3  
rodent's Avatar
Thread Starter
Evolved Member
iTrader: (35)
 
Joined: Apr 2006
Posts: 700
Likes: 3
From: Highlands Ranch, CO
Yeah it does a little but the fire rings do look thicker.

Pic of Cometic:
Reply
Old Aug 25, 2014 | 01:46 PM
  #4  
2006GSR's Avatar
Evolving Member
iTrader: (3)
 
Joined: Nov 2011
Posts: 398
Likes: 5
From: SD USA
I used a cossworth 87mm one on mine. Had the block O-ringed. Goal is to hit 900+ to with a 6765 on my 2.4 with all supporting mods.
Reply
Old Aug 25, 2014 | 01:53 PM
  #5  
REV.olution's Avatar
Evolving Member
iTrader: (62)
 
Joined: Nov 2009
Posts: 285
Likes: 0
From: Washington D.C.
2nd on where to find bored out stock gaskets. Nobody sells them anymore. As for the MLS 4g64 gasket, I've heard people using them and having decent results. but nobody in detail....
Reply
Old Aug 25, 2014 | 02:34 PM
  #6  
rodent's Avatar
Thread Starter
Evolved Member
iTrader: (35)
 
Joined: Apr 2006
Posts: 700
Likes: 3
From: Highlands Ranch, CO
Originally Posted by 2006GSR
I used a cossworth 87mm one on mine. Had the block O-ringed. Goal is to hit 900+ to with a 6765 on my 2.4 with all supporting mods.
Many have hit 900+ without o-ringing the block/head. I know my buddy Jake hit 1100hp on an engine dyno with his 2.1 with a Felpro permatorque running 50psi and no o-ring. He had a batch made from Felpro. Maybe if we can get enough orders, Felpro could make a some. I have read Cosworth is actually Cometic but I'm not sure if there's any truth to that or not.

Originally Posted by REV.olution
2nd on where to find bored out stock gaskets. Nobody sells them anymore. As for the MLS 4g64 gasket, I've heard people using them and having decent results. but nobody in detail....
Yep, its frustrating. I'd be curious who is making 800+ hp on one.
Reply
Old Aug 25, 2014 | 06:32 PM
  #7  
REV.olution's Avatar
Evolving Member
iTrader: (62)
 
Joined: Nov 2009
Posts: 285
Likes: 0
From: Washington D.C.
Yeah, I'm actually using the G4JS Head, wonder if that gasket will work for our cars? It makes since, especially since the head bolts up correctly.
Reply
Old Aug 25, 2014 | 07:17 PM
  #8  
TwStDeVo's Avatar
Evolved Member
iTrader: (62)
 
Joined: Oct 2003
Posts: 1,672
Likes: 0
From: 5o5
I would contact English Racing and see what they recommend since they do a lot of 4g64 builds.
Reply
Old Aug 25, 2014 | 08:04 PM
  #9  
2006GSR's Avatar
Evolving Member
iTrader: (3)
 
Joined: Nov 2011
Posts: 398
Likes: 5
From: SD USA
Originally Posted by rodent
Many have hit 900+ without o-ringing the block/head. I know my buddy Jake hit 1100hp on an engine dyno with his 2.1 with a Felpro permatorque running 50psi and no o-ring. He had a batch made from Felpro. Maybe if we can get enough orders, Felpro could make a some. I have read Cosworth is actually Cometic but I'm not sure if there's any truth to that or not.


Yep, its frustrating. I'd be curious who is making 800+ hp on one.
I had them put in for the hell off it. Won't hurt to have them.
Reply
Old Aug 25, 2014 | 08:19 PM
  #10  
galantman03's Avatar
Evolving Member
iTrader: (7)
 
Joined: Sep 2010
Posts: 301
Likes: 0
From: WEST SIDE, SD
I have this one as MAP pretty much said this is the one to go for with my stage 5 head and stage 2 block 2.4LR. This thing is solid compared to any other head gasket I've seen. Max boost I'm running is going to be 35-40psi. I'm not o ringed at all, but its pricey lol
http://www.maperformance.com/power-e...ution-4-8.html
Reply
Old Aug 25, 2014 | 08:30 PM
  #11  
20EvoX12's Avatar
Account Disabled
iTrader: (4)
 
Joined: Sep 2013
Posts: 26
Likes: 0
From: NJ
I personally went with a Cosworth one. You can't go wrong with Cosworth.
Reply
Old Aug 26, 2014 | 07:59 AM
  #12  
rodent's Avatar
Thread Starter
Evolved Member
iTrader: (35)
 
Joined: Apr 2006
Posts: 700
Likes: 3
From: Highlands Ranch, CO
Originally Posted by TwStDeVo
I would contact English Racing and see what they recommend since they do a lot of 4g64 builds.
Been doing PM's back and forth. He swears by the Cometic but says its a custom HG.

Originally Posted by galantman03
I have this one as MAP pretty much said this is the one to go for with my stage 5 head and stage 2 block 2.4LR. This thing is solid compared to any other head gasket I've seen. Max boost I'm running is going to be 35-40psi. I'm not o ringed at all, but its pricey lol
http://www.maperformance.com/power-e...ution-4-8.html
I've read some issues with PE too like this statement from Aaron.
Originally Posted by JohnBradley
Any modified stock headgasket that cuts into the fire ring is not "perfect" and will fail. The PE has proven to be susceptible to failure by misfires and is alot more sensitive than the Cometic. Every PE equipped car we have done with the exception of one, has had an issue. We have gone to the normal base Cometic. It seals our drag car making over 1050whp, it seals my car at 794 and is now in Mikeys.

Remember the key to advice on the internet is take it from people that do it on the daily and have these motors running and going through abuse. If somehow all my data was incorrect when I tested my car on pumpgas and the car was knocking like a son of gun, the first thing that should have gone was the "cheap" headgasket. It was and is fine

aaron

Originally Posted by 20EvoX12
I personally went with a Cosworth one. You can't go wrong with Cosworth.
Thats what MAP suggested. I'd like to see who with high 800+ hp is running one.
Reply
Old Aug 26, 2014 | 10:32 AM
  #13  
evolve_VIII's Avatar
Evolving Member
iTrader: (11)
 
Joined: Dec 2007
Posts: 456
Likes: 2
From: michigan
Im running the JE proseal with no issues.
Reply
Old Aug 27, 2014 | 07:59 AM
  #14  
rodent's Avatar
Thread Starter
Evolved Member
iTrader: (35)
 
Joined: Apr 2006
Posts: 700
Likes: 3
From: Highlands Ranch, CO
Originally Posted by evolve_VIII
Im running the JE proseal with no issues.
I'd be curious how that gasket holds up with 40+ psi of boost.

Magnus suggested running the HKS gasket but thats not cheap. I don't mind paying for one ***IF*** it will hold. Felpro does make a gasket for the 4g64 but its half as thick as the stock 8/9 gasket and I don't think I want to take chance with piston to valve clearance.
Reply
Old Aug 29, 2014 | 05:10 AM
  #15  
silentkiller's Avatar
Evolving Member
iTrader: (4)
 
Joined: Apr 2011
Posts: 170
Likes: 1
From: Portland , Oregon
^^ is there any 87mm hks hg. I dont think they have.
Reply



All times are GMT -7. The time now is 06:32 PM.