Difference 1jz and 2jz headgasket *pics*

OneJoeZee

OneJoeZee

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Look, I'm not saying the 2J gasket might not be better. It very well might be but I'm asking for some solid evidence.

He said, she said from some guy I don't even know doesn't do shit for me. Just because Rudy told you doesn't mean I should believe you anymore. Show me something.
 
R

Ric

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Feb 22, 2007
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Missing cooling holes, to.. cooling holes appear. Notice how the 1JZGTE has the cooling passages built into the block and head, but the headgasket caps them off.

What more do you want? People do 1000+whp on the stock toyota 2JZGTE headgasket in 2JZGTE's without cooling problems.

Toyota opened up those passages for a reason, and there isnt a single downside to it.
 
OneJoeZee

OneJoeZee

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That isn't concrete evidence. That's just pointing out the physical differences in the gaskets we can all see. You don't get it. I give up. I should know better than to expect you to be able to supply me with the kind of evidence I'm asking for. Thanks anyway.


If anyone else has any input, I'd love to hear it... honestly. Not just, 'well so and so told me to use it so I did and I think my car runs a tad cooler.'
 
C

c_ronius

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They are DIFFERENT HEADS... I'm not too suprised the holes in the HEAD GASKET are different.

I suspect the main reason some folks will say the 2j gasket is better on a 1j is due to availability.

I'll bet the 2j one does work just fine, lots of folks use them on their ij's...But to say it's better, without some sort of real proof, is misleading.

Where are these engines which suffer detonation and fail due to the head gasket? Show me that the head gasket is at fault. I guess there are no other factors in something as simple as an engine that could cause that.
 
OneJoeZee

OneJoeZee

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Ric said:
2JZGTE hands down.

It's proven to cool better, not cause random detonation, and costs the same price.

All the 500+whp engines you'll ever see have 2JZGTE headgaskets. Every 1JZGTE shop I've talked to reccomends it.
Click to expand...

That's bullshit already because I KNOW not every 500hp 1J is using a 2JZ gasket and you know it too, so don't tell me that.

If it's proven to cool better, then surely you can show me that proof. So far you haven't. So you either have proof or you don't. If you do, then let's see it so we can all benefit. If you don't, then quit tap dancing around it. I'm not going to go out and buy a 2J gasket just because you say so.
 
Van Diesel

Van Diesel

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all my Japanese tuners (when I lived there) said to run the 2JZ head gasket. They all actually said the same thing as Ric....just in japanese haha.
 
J

jz*supra

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If everyone says a 2j gasket is better for cooling have you ever have problems with the 1j gasket causing overheating? I've never heard of anyone claiming there head gasket caused there motor to overheat. The 1j headgasket does what it was designed to do. i'm with joe, why swap headgaskets if you dont KNOW the affects. Maybe you guys are right and it simply does cool better, maybe joe's right and the lower temps may affect clearances and end up destroying your head. Is running a $200 fan less worth possibly destroying thousands of dollars of valvetrain components?
 
OneJoeZee

OneJoeZee

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All I'm saying is for someone to show me some kind of legit test or something that shows the 2J gasket being better. Ric(and others) seem to be really confident that it works so much better. If it works so much better, I don't think it's out of the question to ask for proof why they believe that. Just because someone told them isn't sufficient for me.

For instance, if someone said a new exhaust product makes a 20hp gain, they would have a dyno sheet to back that up or it's not even worth saying at all.

If a 2J HG is superior beyond a shadow of a doubt, then there must be some kind of objective proof to show that.
 
R

Ric

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The proof is in the design, you're not going to see a dyno chart because this is not a performance mod. You're water temp gauge will not show any difference either, because of the thermostat.

2JZGTE gasket = no hotspots. 1JZGTE gasket = hotspot on the intake valves. IDK about you, but a hotspot could lead to warping, detonation, and other things.
 
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