Sleeving an LS1 block
I wanna repair an LS1 block with a cracked sleeve, and resleeve for a 3.905" bore. I've talked to a few very knowledgeable individuals about it and got mixed results. From what I understand, it's not very reliable to just bore the aluminum block, leaving a ridge at the bottom and then installing just some $10 sleeve from Badger. Many have "dropped" sleeves this way when the aluminum expands more than the iron and compromises head gasket seal.
I hear the new method is to install a flange sleeve that will move with the aluminum as it expands maintaining head gasket seal. Is there anyone here that has had experience with this that could lend some advice or point me in the right direction?
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The people I do talk to that own shops, who are sponsors, who have experience sleeving blocks before anyone even thought to sleeve them, tell me I can do it! In fact, they're even telling me how to do it! Even if I don't do it correctly, at least I tried and I learned something new. That, IMO, isn't a waist of time.
The people I do talk to that own shops, who are sponsors, who have experience sleeving blocks before anyone even thought to sleeve them, tell me I can do it! In fact, they're even telling me how to do it! Even if I don't do it correctly, at least I tried and I learned something new. That, IMO, isn't a waist of time.
Earth calling..what people list as their occupation tells you absolutly nothing about what they know about hot rodding...If I were you I would check and see what a stock bore LS1 block can be purchased for and weigh that against what it is going to cost in time and $$$ to rebuild this fine free block you have...
...they only time I would be sleving a block would be for a increase in cubic inches..and RED is the only place that I would have do the work ..
...they only time I would be sleving a block would be for a increase in cubic inches..and RED is the only place that I would have do the work .. 
I did get to talk with Steve (from RED) and he is the one that gave me the info on how HE does such a task. He did not say I was wasting my time, nor did he say I couldn't do it. He gave me a darton part number and the supplies he uses. He was more helpful than I expected.
I have weighed the pros and cons of taking on a task like this and the pros heavily outweigh any cons. So if anyone else thinks I am wasting my time, you can save some bandwidth and not post. If anyone has anything positive or constructive to say, like Bo, I'm all ears.
Now that my smart *** rant is over, I'll say this. If you wanted a sponsor answer, you should have posted in the sponsor section. I'm not sure which one your talking to, but if it isn't Steve, they probally don't sell many. Even the best sposors out there have leaking sleeved blocks. Steve or Katech are the only "trusted" sleevers on here. You can do whatever you want with the thing. If you feel it will make you better at what you do, have at it. Nobody on here knows what kind of tools and machinery you have access to, so how are we supposed to know WTF you can do? If you posted the question again, the people will give you the same answer. 99% of people do not trust repaired LS1's from average machine shops. It cost to much in labor and is unreliable. A new/used block is cheaper and 10 times more effective. However, yours was free and your doing it for the sake of doing it, at hardly no expense, so get after it.
For the third time now, I talked to STEVE at RACE ENGINE DEVELOPMENT. I have also talked to Erik Koenig, and Judson Massingil. I didn't ask for a sponsor to post, just someone who has had experience. I believe I said that in my first post. I didn't ask for someone's opinion whether or not I'm wasting my time, I asked for help on HOW to do it. Instead I get negative feedback from everyone who thinks they're qualified to give their advice just because they have over 1,000 posts. Like you said, none of you know how long I have been building engines, who I've built engines for, nor do any of you know what machinery I have access to, so why do you automatically think I'm wasting my time? Honestly, if I were you, I would have sent the link for this thread to whoever you got your sleeved block from in hopes that you would get the info you were looking for. But what was your response? Nice work.
What did they say?
He actually IS an engine builder AND he actually went through SAM. He has a full machine shop to use, and he just wants to try this stuff out.
I gave him my opinion, you all gave him his. He just needs to try it now. Thread Done.









