06-12-2021, 01:56 PM | #1 |
Drives: Chevrolet Camaro Join Date: May 2021
Location: Mesa, AZ
Posts: 7
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Cracked Cylinder Sleeve
Hey guys,
Back again to report on my DOD/AFM delete on an L99. While cleaning up the combustion chambers, I discovered a through and through crack in cylinder number 7's sleeve. See the attached image. In anyone's opinion, should I invest the time and money in getting the whole block re sleeved, which will probably mean new pistons, or do you think it might be a decent time to take a look at just buying a new bare block? I am interested to hear everyone's opinions. I would hope that I might be able to offset some of the cost of a new bare block by selling this block pretty dirt cheap as well as some of the other good components that I will be replacing anyways (i.e., camshaft, etc). I am also not sold on doing anything yet, because I do not really know what options are out there for this unfortunate discovery. |
06-12-2021, 04:58 PM | #2 |
Drives: 2014 1SS/1LE Join Date: Nov 2015
Location: Louisville, KY
Posts: 826
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That's the exact same reason I bought a low mileage LSA block for my build, I didn't feel like messing with resleeving the block.
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06-12-2021, 06:03 PM | #3 |
Drives: Chevrolet Camaro Join Date: May 2021
Location: Mesa, AZ
Posts: 7
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If I go that route, am I able to re use the rotating assembly out of the L99 if everything is in good shape?
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06-12-2021, 06:09 PM | #4 |
Give speed a chance
Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019
Location: Mesa, Az
Posts: 2,225
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What are your intentions with the vehicle? There are a lot of good LS3 crate motor options out there, just depends on how much you want to spend and how much time you're willing to wait if you do a full old school build.
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06-12-2021, 06:15 PM | #5 |
Drives: Chevrolet Camaro Join Date: May 2021
Location: Mesa, AZ
Posts: 7
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Well actually I bought this engine as a dropout from a wrecked 2012 Camaro SS already, and the plan was to swap it into a 69 Cadillac. So basically, a good chunk of change has already been spent on it, and all I was planning to do was delete DOD and drop it in. I am trying to minimize the cost that this problem is going to cause.
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06-12-2021, 06:31 PM | #6 | |
Drives: 2014 1SS/1LE Join Date: Nov 2015
Location: Louisville, KY
Posts: 826
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Quote:
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830 WHP 700 WTQ, Whipple 2.9 @ 13lbs Boost, Flex Fuel Tune by Blevins Tuning, LSA SBE, 3.5 GripTec, ATI LS3 Damper, AFR 260cc Mongoose, ARP Studs, Yella Terra Ultralites, Johnson 2110R, BTR PDS Stage 3, Melling 10355, Improved Racing Baffle, ID1050X, DSX Triple Fuel Pump, RotoFab CAI, NW 103mm TB, Stainless Works 1-7/8" LTH to 3" Speed Eng w/ X-pipe to NPP, Powermaster 9509 XS, Detroit Speed Motor Mounts, MGW, Monster LT1-S, ZL1 Calipers, DBA Rotors & Pads, Bilstein B6 Struts & Shocks, BMR 1.25" Drop Springs & Adj Rear Bar, Pegasus Solid Bushings, Z/28 Wheels, other misc parts.
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06-12-2021, 06:35 PM | #7 |
Drives: 2011ss/rs camaro Join Date: Sep 2011
Location: florida
Posts: 1,261
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My hats off to you on the cleaning job. It looks new, except for the crack
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06-12-2021, 06:37 PM | #8 |
Drives: Chevrolet Camaro Join Date: May 2021
Location: Mesa, AZ
Posts: 7
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06-13-2021, 01:19 PM | #9 |
Drives: 2014 Camaro 2SS Join Date: Feb 2015
Location: Metro Detroit
Posts: 492
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Me personally, I'd sleeve every bore and build it. Sleeve's are going to be much stronger and allow you to run large displacement and still have plenty of wall clearance for strength, and room to bore it again if you ever have another failure. Like always though, it's a balance between wants, needs and budget.
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06-13-2021, 01:29 PM | #10 |
Drives: 2010 Turbo LS3 Join Date: Dec 2009
Location: Palm Bay, FL
Posts: 2,734
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I'm not getting why you have to resleeve all the bores and not just the one. I dropped a valve on a 427 last year and the machine shop just pulled that sleeve and put a new one in. I did have to put new pistons in but that was because of damage to several pistons and nicks in the other cylinders.
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06-13-2021, 01:52 PM | #11 | |
Drives: Chevrolet Camaro Join Date: May 2021
Location: Mesa, AZ
Posts: 7
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06-13-2021, 01:55 PM | #12 |
Drives: 2014 Camaro 2SS Join Date: Feb 2015
Location: Metro Detroit
Posts: 492
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You can do just 1 cylinder to repair it. But your cost is mainly around setup and running the machine to install the new sleeve. Doing just 1 sleeve, isnt really much cheaper than doing all of them, once the machine shop has set up the equipment to do the work. OEM sleeves are cast into the block so they dont just press out. You have to bore them out and press fit in the new sleeve. Then bore an hone to size your pistons and lightly mill the deck.
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06-13-2021, 02:09 PM | #13 | |
Drives: Chevrolet Camaro Join Date: May 2021
Location: Mesa, AZ
Posts: 7
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06-13-2021, 02:36 PM | #14 |
Drives: 2014 Camaro 2SS Join Date: Feb 2015
Location: Metro Detroit
Posts: 492
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Yes because the new sleeve(s) will need to be fitted to the pistons you're going to be using anyway.
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Tags |
block, cylinders, machine shop |
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