The engine is made in Europe, not here by lazy bitchy GM Workers..

 

YES!

GM-

1. GMC
2. Chevy
3. Pontiac
4. Buick
5. Saab
6. Saturn
7. Hummer

 

So you can replace the pistons without removing the engine???

 

That might take the cake for ignorant comment of the year....

 

UUhhh....GM is not the only manufacturer that uses a piston like this . If a OEM used a forged piston in a mass produced eninge then people would be complaining about how loud the eninge is . Forged pistons require more clearence because they expand more than cast aluminum piston , when the engine is cold they make noise .

bdwarr6 - You have no clue what kinda abuse your car saw when u sold it . If it was having issues with knock , it should been handled . I would almost garantee Rob would done that for free .

 

Ha Ha Ha!

 

A little off topic real quick, Hey Brian I hope you banged that chick that's on the hood of your car on the hood of your car!

 

yes, you remove the head and the oilpan, the windage tray has slots to get to the connecting rod bolts and out they come from the top

 

It may be ignorant but the US doesnt really make the BEST stuff.

 

Does ANYONE know a good machine shop where I can have these pistons installed?

Preferrably someone who has worked with the LSJ before?

 

yeah I'm looking for a good ecotec shop around here too... need a few things done...

 

guess its time to open an ecotec shop

 

Forgot one.

 

Basically any competent shop can do this.

Personally. I feel that you should have the engine removed and get it milled for the new pistons.

The crank should be re-balanced for the weight of the pistons.

Should look like this..

 

Brian, while that is true for the most part Per GMPD the pistons can be swapped out no problem without honing if you use the stock rings which are well capable of handling the power increases....I have personally done 2 2.2L eco's with no ill effects, one has 40k miles on the mod alone

you can even swap rods if you want to, just reuse the crank bearings...

but to install new rings and such, you would have to hone the cylinders

 

nice

 

ok, then here is the next question i am going to have to hone all my clyanders to accomidate the 10:5:1 pistons?

 

are you reusing the stock rings?if yes
then no
if not then yes.
otherwise the rings wont seat properly.
Also make sure you do the pistons 1 at a time and keep all rings and bearings in order and make sure they go back where they come out and use a ring spreader, but dont over spread the rings, just spread enough to get them on the pistons.
Use motor oil on the ring lands and clean the rings before install....I can go on and on...

 

hmmmmmmmmm

 

What exactly is the point of that joe.

 

I should of swapped out my pistons while I had the head off as it would have been easy, but lack of funding killed that project. The buildbook is pretty damn good and detailed about this swap.

bdwarr06, I thought you were getting the sleeve replaced. That means you would need the deck resuraced too wouldn't it? Sorry if I missed something here by the way that would answer this question.

 

Im sry but my dad jsut retired from Gm and i dont respect the fact your calling them Lazy bitchy workers. Alot of those guys in there work there ass'es off to provide for there families, the rest of them **** around and **** up your parts. So please dont call ALL Gm workers that. cuz alot of them aint, many have 20-30 years in the shop. and they take there job just as seriously as we take care of our cars.

 

Bingo!

I think thats the part that people are missing out on. People are dropping pulleys and have not taken in regard of:

1. Monitoring Devices
2. Upgrading their aftercooling system
3. Their cooling system in general

Heat soaking is the devil and that devil lives on top of your engine if you don't do things correctly. I'm not at all getting on the original poster but just bringing awareness of what will happen if you don't take pre-cautions. The guys who are running the gauges to monitor their air intake temperature, they know whats going on. The guys who have a wideband unit, they know whats going on.

Also for the fact that a 2.6 pulley is putting you past your M62's efficiency range and you'll start producing more heat than power, but that's a different topic as well.

So I hope some of the people who do have SS/SCs read this and read this thread cause this is what COULD happen to you if you lack in atleast 1 of those 3 areas.

But I do wish you luck and hopefully you fix your situation.

 

That is such a load of CRAP (Misinformation)..

Do not ghetto out on this build unless you want to worry all the time that something will fail every time you WOT the Pedal..

Ghetto Modding is asking for problems.

Pony up, Save up and do it correctly or stay stock. There is no grey zone here, only built or not built.

As soon as you remove the rings from the piston, you are going to flex them and they will be diferent, even if they are going back into the same cyinder. They will not have the same wear pattern, they will need to be re-seated and broken in like a new ring, so you might as well spend $100.00 and get a brand new set whille you are in there.

Get new Rings.
Get the cylinders Honed.

AS A MINIMUM...

You should do the deck and head surfaces.
You should get a new headgasket.
You should not re-use any bolts.

 

Ok, Everyone Less your father then... He's Cool, the rest are Lazy..