are they pressed in or are slid in to place?
listening.
I need more info on the Dartons too.
Pressed. You have to bore the block out to fit them. It isnt a DIY thing(unless you are an experienced machinist).
Yea it isn't easy and cheap. I got my darton sleeves for $635 and the machine work cost me $950. Thats about $1,600. I have about 150 miles on it and im thinking about selling it. I don't have the money and time for this stuff anymore. I might sell the whole bottom end which will include Darton sleeved block with weisco 10.1 .020over pistons,eagle rods,GM oilpump gear and ARP head studs. $1,200 come and get it..
what happens when a ecotec has some miles on it and then gets rebuilt. Do these motors have to be bored over when rebuilt? or do you have to press new sleeves in the block any way? would it be better to pay up front and buy the new motor form GM then just put in the forged parts in it. Then trying to find a decent machine shop. nobody offers these motors in crate form. Mantapart does but most people on here say to stay away.
carnivorous mouse wrote:what happens when a ecotec has some miles on it and then gets rebuilt. Do these motors have to be bored over when rebuilt?
Over bore depends on the condition of the cylinder walls. If the engine is just tired(not blown) you'll probably be able to get away with just honing the cylinders and tossing stock bore pistons back into it. A machine shop will be able to let you know.
As was mentioned above, the job is for an experienced machinist. I called two machine shops before I found one that would touch my LSJ. It cost me 300$ to have a single generic replacement installed to replace my bad sleeve & bored out to stock dimensions (this included the other 3 being honed out as well & the block hot tanked). He offered to throw in Darton's for 900$ If I wanted instead.
my block is at the shop right now getting dartons put in.. guy told me between 400-600 for the install... im assuming ill get there when he is done and he will tell me 800 or something stupid like that.
ive never heard of anyone having to pay 900+ for the install... 500 is about the only price ive heard
ill let everyone know how much mine was when its done
Well my block has to come out and the machine shop has to redeck the surface.. The sleeves had moved alittle bit. I just found out yesterday when I pulled the head to put my dual valve springs and stuff in. They are coming to my house to check it out first..
i pm'ed you, give me a call at 443 988 8039, i am interested in the motor
running rich? turn the boost up
that was to 408whp cavy by the way
running rich? turn the boost up
kevin roskosky wrote:i pm'ed you, give me a call at 443 988 8039, i am interested in the motor
Do you realize that this is an open forum and now everyone in the whole world has your phone number?
yes, i mean its like the same thing as craigslist i guess
running rich? turn the boost up
Well they came out and I have to take it all back apart and take everything back in to get machined and cleaned up. So it will probably be awhile to get it all back. Oh well I guess. @!#$ happens..
Oh and I am sorry. I should not have said anything about my block in this thread. I didn't mean to thread jack. And to everyone else im not even thinking about sell it to anyone until it is fixed right.. But anyway when you want darton sleeve done it is alot of work. If you look on line you can find some places that sell ecotec block already sleeved with dartons. I think it is around 1,200 or so. that doesn't seem to bad but its still alot of money....
408whpcavy wrote:If you look on line you can find some places that sell ecotec block already sleeved with dartons. I think it is around 1,200 or so. that doesn't seem to bad but its still alot of money....
Karo has told me that he can get them.
Tinkles wrote:Pressed. You have to bore the block out to fit them. It isnt a DIY thing(unless you are an experienced machinist).
Actually, stock sleeves are cast in...the engine block is molded in aluminum around them, for a superior heat transfer and strength bond.
However, yes...replacements are pressed in.
Tinkles wrote:Over bore depends on the condition of the cylinder walls. If the engine is just tired(not blown) you'll probably be able to get away with just honing the cylinders and tossing stock bore pistons back into it. A machine shop will be able to let you know.
Not to bust your balls, but a slight overbore (typically .020") is the way to go if rebuilding the engine. I don't recommend just honing; on an engine that's been run for any appreciable amount of time, cylinder wear and distortion will create issues with bore eccentricity and taper that can be very difficult to seat fresh piston rings on.
I'd like to also let everyone know that LA Sleeve is now also doing Ecotec sleeving. Just ship them the block and they will take care of the entire process, parts and labor.
Edited 1 time(s). Last edited Tuesday, April 27, 2010 5:19 PM
Bill Hahn Jr.
Hahn RaceCraft
World's Quickest and Fastest Street J-Bodies
Turbocharging GM FWD's since 1988
www.turbosystem.com
Bill Hahn Jr. wrote:Not to bust your balls, but a slight overbore (typically .020") is the way to go if rebuilding the engine. I don't recommend just honing; on an engine that's been rin for any appreciable amount of time, cylinder wear and distortion will create issues with bore eccentricity and taper that can be very difficult to seat fresh piston rings on.
Exactly, condition of the cylinders/cylinder walls.
I was also assuming he was talking about the Darton sleeves not stock.
Tinkles wrote:Bill Hahn Jr. wrote:Not to bust your balls, but a slight overbore (typically .020") is the way to go if rebuilding the engine. I don't recommend just honing; on an engine that's been rin for any appreciable amount of time, cylinder wear and distortion will create issues with bore eccentricity and taper that can be very difficult to seat fresh piston rings on.
Exactly, condition of the cylinders/cylinder walls.
I was also assuming he was talking about the Darton sleeves not stock.
Well, you said just tired, not blown, would be OK for a hone and not an overbore. "Tired" to me would usually mean high miles and/or worn out, in which case an overbore would be a necessity.
If I misread how you like to use the word "tired", you have my regrets, but that's what it's always meant to me and mine..sacked out, done, wore out!
Edited 1 time(s). Last edited Tuesday, April 27, 2010 5:18 PM
Bill Hahn Jr.
Hahn RaceCraft
World's Quickest and Fastest Street J-Bodies
Turbocharging GM FWD's since 1988
www.turbosystem.com
408 can you help me find a site that sells the bottom end sleeved? Thanks!
LE61T PTE6262 Powered 
golden eagle has them... or karo can get gm racing sleeved blocks... decent prices really...
i didnt find em on golden eagle
LE61T PTE6262 Powered
i meant bottom ends already assembled with sleeves lol
LE61T PTE6262 Powered
