Ok just a question, I have had the balt less than a month. Right now my number 4 piston is cracked. Any idea where I can get a set of stock/forged pistons for a decent price. Also, does anyone know a ballpark on what someone would charge to put them in?

Thanks!!

 

pistons are $4006 and $4006 for install

 

Ummm no dude. I have purchased them for other cars, Imports and FORGED pistons were anywhere from 500-900 bucks depending on brand.

Why reply with a smart alec comment.

 

Thats for all 4 right?

 

GM recommends eagle connecting rods, and diamond forged pistons. Buy the LSJ build book. All the parts and part numbers you would need are in there.

 

Yes!!!


Thanks man!!

Any idea where I can buy the LSJ build book, I saw a PDF but I would like to have the actual book

 

crateenginedepot.com

 

was thinking the same lol. will use this for later reference.

op look in classifieds

 

check out ottperformance.com

they have rods for 1k and pstons/rings and clips for 600

install will take you a weekend

also if you are looking for ultimate reliability i would suggest Darton MID sleeves as well

they are 685 + Darton will install them for 600 if you mail your block to them (10day turnaround)

 

So it is something I can install myself, I have all the tools and what not just never done work on the block just bolt ons.

Would it be better in the experience of a Mechanic?

Any ideas how much I am looking at labor.

I had a fellow forum member help me discover the cracked piston. Shout out to his help.

He took out the number 4 spark plug and it had oil on it. I guess a classic sign of a cracked piston. not to mention I am leaking oil and my car sounds like a SUBY.

Prior to the cracked piston I had a clogged cat and was boosting upto 20 psi with nothing but back pressure so I am guessing this caused the crack.

Any ideas what I need to buy besides the piston and rings. He said a hone, but I will be honest I have an idea of what it is but don't see why I need it. Any info would be great guys thanks for the help!!!

 

Wow, man that sucks gotta spend all that money, hope it all works out for you.

 

Thanks man sucks I had the car a month. Put on stage 2,CAI DP/HEADERS/CBE, just ordered 2.9 and 60 pound injectors was about to take it to get a tune and BAM this happens. I guess this gives me an excuse to build the engine.

 

i respond to dumb questions with dumb answers.

 

Explain how it was a dumb question dude? People asking for help when there car is not functioning as it should be or when they don't know the answer. That is what forums are for tool bag. Troll else where.

 

dont get gm performance pistons... either wiesco or Diamond

 

GM recommends diamond for the LSJ. Theyre about $900 for the set, but well worth it from what Ive heard.

 

it was dumb because clearly you never even attempted to search for it as they are listed all over the internet, from alot of vendors here and even some used sets in the for sale section.

make some effort

 

Uh...Huh??

http://www.ottperformance.com/store/...L-LSJ-4p56.htm

 

Diamond all the way... thats what i have and that is what gm uses to replace their bull **** pistons in their build book

 

Clearly I did search, I checked the FS thread and nothing recent for sale. I did a google search on cobalt 2.0 headers and nothing of help came up plus I had several other questions. Get a life dude seriously.

Anybody have an idea on what I am looking at to have a single piston installed?

 

this was back when vendors just started stockign them. Like right around when GM just released the stage 3 kit for the LSJ.

 

Oil on a plug for a cracked piston???
THere are several things that could cause oil on a spark plug.

Leaking valve cover gasket, where the gasket goes arround the plug hole
Leaking head gasket
Excessive Valve guide/stem clearances
-Worn Valve guides
-Worn Valve stems

You could just be running really rich
You may just have worn piston rings

Do a compression test.
Borescope the cylinder through the spark plug hole to see if
you can see the crack.

If your gona pull the pistons out,
Check them with a penetrant inspection. Basicly it seeps into cracks,
and makes small cracks show very easily. If they are fine, swap the rings,
rehone the cylinders, measure your cylinders and pistons out. Sounds like
your in for at least a partial overhaul anyway. Check the valve stem/guide clearances
and valve seats.

 

Thanks for the info, I am going to take it to the stealership and have them dick with it. Once it comes to the block I am stupid.

 

First off welcome to the club. secondly, I'd reccomend diamond racing, you can probably stick with the stock rods unless you are going for crazy hp. Rod bearings and save your pennies to replace all the bolts and get a cosmetic headgasket and arp headstuds, along with The random little stuff and you are good to go. Your probably looking at 1200 bucks..... Arround that, when it's all said and done

I just read the whole thread, if I were you I would do a little investigating before you buy pistons, definately run a compression test, are you getting blowby?

 

lsj ftw