Hello new to the forum... Fourth post here i go!
So long story short blown LSJ.
I thought it was a blown head gasket. So i buy everything i need from crate engine depot and zzp. Head gasket, arp studs, cam bolts, timing chain, balancer bolt, timing cover gasket.
Then i parked the car in the garage and open up the motor only to find out 2 of the sleeves were deeply scored... And i almost had a heart attack when i found out. I called my buddy over and he said he had replaced sleeves before and its not that big of a deal. But it was going to cost alot more than expected. After shopping arround and shopping around some more i finally bit the bullet and bought diamond pistons from zzp alog with supercharger needle and nose bearing, also replaced the coupler. Then i went over to crate engine depot and ordered 4 sleeves, set of rod bearings, set of rod bolts, set of cam bolts, balancer bolt, timing chain, timingcover gasket and im forgetting some stuff im sure.
Lets get to work.
Jack up the car
Drop the oil pan
Remove rods and pistons
Borrow tool from local gm dealership
Pull the old sleeves
Press new sleeves
Cut the new sleeves
Install new pistons
New rod bearings
New gaskets
Resurface head
Instal head
Time the engine
Install oil pan
And install the 837 other parts you removed lol







[IMG]http://i1182.photobucket.com/albums/x441/2wheelsrbetteralbum/CAM00760.jpg[/IMG]

 

Looks like mine did..lol

 

Good luck man it will be a totaly different animal.
Looking at ur pic of the piston it looks like u can the car like that for a lil while.

 

My god that looks like one hot mess. Good luck!!!

 

This is a surprise rebuild, not a build

 

Why would you not upgrade the sleeves?

 

good luck the gm sleeves are bad about being out of round after you press them in

to do it right you would have to pull the engine

 

Well i must have done something right because i have put 4xxx miles on the motor and it dosent burn anything has great compression and pulls hard. The diamont piston rings sat nicely in the new sleeves.
Ill post more pics of the "rebuild" when i find my memory card. The hardest part was cutting the top of the new sleeves so they would sit flush with the deck. I thought about pulling the motor but this is my daily driver and coulnd have it sit for more than 2 weeks.

 

There are a few reasons why i didnt. The biggest one was time. I did what was more time and cost efficient for me. I did research and the stock sleeves seem to hold up well. Also its very simple to instal stock sleeves. Also my motor failed not because of the sleeves but because of the ring lands on the cast pistons.

 

Lol so I gotta ask, what did you use to deck the block being its in the car?

 

Just a grinder! Lol
There is a kit GM dealerships use to replace sleeves. It comes with the sleeve puller, sleeve installer, and sleeve cutter. I have pictures just have to find them. Its a Cutter that bolts to the 4 head bolts around each cylinder and after you set the correct depth you use a huge drill to power the cutter and it cuts about 1/16 off of the top of the sleeve making it flush with the deck. Thats the part i was more nervous about but they came out perfect first try. If some how you set the depth wrong and go too deep, youll have to pull the sleeve, replace and try again...

 

Lolz