Hey guys,
after about a month of correspondence with Cometic, they will finnaly be making a head gasket specifically for the 2.0 (this is not the 2.2 gasket). It should be available in a week or two.

 

How is it different from the current one available ....that a few 2.0 guys are already using ? The 2.2 and 2.0 do share the same 86 mm bore .

 

Is there one for the 2.4L yet? (I didn't look, lol)

 

That's what I was thinking...maybe there is some type of difference I'm not aware of.

 

There are slight differences between the l61 and the lsj. I've been told once I just can't remember what they are. I'm sure someone will chime in. These differences are why we cant use the 2.2 head from patriot. Anyways, I sent cometic a bunch of pics so they could develop the head gasket. The person I was corresponding with insisted I use a head gasket specifically designed for my engine.

 

I'm not sure I would give them a call.

 

So they are going to make the same gasket as the 2.2 over again? They are exactly the same bro. I have the cometic headgasket for the 2.2 installed on my SS/SC. The gaskets are exactly the same. Why waste time, just order the 2.2 gasket. I made a huge sticky on this too! It's right up top on this very forum! Check out my gallery if you want to see a picture of it!

The reason we can use the 2.2L head from patriot has to do with the cams/cam sensors the LSJ head uses.

 

^^^ Well either way cometic is making the gasket. I don't know why I even post anymore. The point of the post was to let everyone know that Cometic will be making a gasket specifically for the LSJ, not that the allready existing gasket wouldn't work. I try to help but everyone loves arguing over the most trivial things.

 

I agree....I have been ridiculed alot this week. I spoke with Todd at Intense and he personally spoke with an engineer from Cometic and he said that there are differences between the 2.2L gasket and the 2.0L gasket. He also stated that the people who are running the 2.2L gasket on a 2.0L motor have been lucky to not have any problems. I was told it would be more like 4 to 6 weeks before we would see anything that we could buy.

Later,
Vince.

 

^^^well at least someone believes me. I would have used the 2.2 gasket if the technician from Cometic hadn't personnally called me back and asked for pictures of my motor.

As far time goes this was his exact response.
"We should have a gasket for the 2.0L in about a week or so. Thanks."

 

I'm not trying to ridcule here bro, I was just trying to save you some time and efforts. I still have the orginal gasket hanging in my garage as a momento if needed for a comparison. I spoke with the engineer at Cometic as well to make sure the gasket was the same and would work correctly. I also compared the two very closely before I installed the Cometic gasket. Sorry if I offened you as I didn't mean to come off that way. In fact, I would be more than interested to see the differences if this is indeed true. I'll definitely keep my eyes on this thread for sure, but as of right now my car runs like a champ so I'll hope for the best.

Either way, I hope you can accept my apologies for coming off harsh as I did not mean to offend you.

 

^^^ well it seems as though the engineers at Cometic don't talk to each other. It probably is the same gasket with our bore. When It comes in I will post pics of the new gasket and the stock gasket.

 

Sounds good man. The gaskets looked identical when I compared mine right ontop of each other. I double checked to see the cutouts for the coolant spots, bore, etc were good as well. It also fit on the the block perfectly too, so I think I'm good. I've got about a thousand miles on it, and so far so good.

On a side note, have you picked up some good headstuds and had the head resurfaced yet? Definitely important to get the head checked out after blowing the motor. Golden Eagle makes some great studs. I used the 2.2 part number for those as well, and they work great. Let me know if there is anything I can do to help you out bro.

 

The factory 2.2 and 2.0 head gaskets do carry a different part # ...but , that could just have different #'s due to different thicknesses of the gasket and not overall design .

 

I went with the golden eagle headstuds as well. Did you have to angle those studs like you have to with the stock bolts (like in the lsj bulid book)? Yep my head and block are at the machine shop. The block is getting re-sleeved and the head is getting ported and machined to accept 1mm larger valves.

 

What do you mean by angle them? You just screw them into the block and torque them, install the gasket and head, then washers and nuts on top, and finally torque the head down.

 

^^^ I read somewhere that the stock bolts have to be angled with a special tool. just makin sure you don't have to do that with the studs.

 

You're thinking of a "torque angle meter." That's part of the GM process for properly torquing "torque to yield" fasteners. All studies show it to be a more accurate measure of clamping force than regular torque procedures. But new Studs usually come with THEIR manufacturers torque recommendations.

 

Just an update, I just ordered my 2.0 head gasket from Cometic. If you're planning on ordering the gasket it will be available online and will have a P/N by the end of next week.

 

Sounds good. Please take some pics as I would like to compare them to the pics I have. Maybe I could get Cometic to send the drawings of wach to see how much they are off. My car is still running great though on the 2.2 one!

 

Is there a Defect in the 2.0 Stock one?

 

It's probably gonna be several small differences, but any one of them could cause performance problems. You have to remember that the LSJ engine was designed to run on boost, so pretty much everything in the engine was designed to withstand high cylinder pressures. Gasket thickness, larger water passages, oil passages, there could be even some smaller things than that different in the gaskets. I just think it's bad that vendors have been advertising a 2.2L gasket for an LSJ. The two engines are not even remotely the same.

Anyways, I plan on purchasing one now that they are available when I go to put my car back together.

Later,
Vince.

 

any update on this?

 

Still waiting on the gasket

 

Anyone have an answer?