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Re-sleeving a 4g63

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Old Oct 5, 2017, 07:43 AM   #1
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Re-sleeving a 4g63

Hello my fellow enthusiast, was wondering if anyone here in the forums has ever re-sleeved a 4g63 block before. I currently have a block that has a cracked sleeve is there any chance that I can save it? I will most likely just be buying a new block but would hate to put this one in the trash for a small crack.

If anyone would like to buy the block PM me also have the crank that I will part ways with It was a buschur 2.3 short block
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Old Oct 5, 2017, 11:10 AM   #2
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the 4g63 doesn't have sleeves. That's a cast cylinder wall that's cracked. It would probably be cheaper to buy a new block then sleeve the one you have, but I could be wrong about that.
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Old Oct 5, 2017, 11:46 AM   #3
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so you can but its not worth it
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Old Oct 5, 2017, 11:47 AM   #4
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yes i believe it is possible to sleeve fully cast blocks, but i also believe its $$$$
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Old Oct 5, 2017, 11:53 AM   #5
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yes i believe it is possible to sleeve fully cast blocks, but i also believe its $$$$
thanks man appreciate the response. you think I can sell this one then for the low?
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Old Oct 5, 2017, 11:57 AM   #6
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thanks man appreciate the response. you think I can sell this one then for the low?
Sorry man i really couldn't say. Im sure you could get something for it, how much i have no idea.
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Old Oct 5, 2017, 01:14 PM   #7
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A brand new bare block from mitsubishi is $1700

Part #1050A060

I spent $1500 sleeving my 4B11.

Buy a brand new 4G63 block.
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Old Oct 6, 2017, 09:19 AM   #8
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I got a customers 4g63 block sleeved in only 1 cylinder because of damage caused by a piston. Not including the whole machining to redo the whole block the 1 sleeve cost me $60. I couldn't even tell it was repaired. Engine made 520 WHP with no problem for over 6 years now. Get the block repaired it will be fine..or trash it.. Ill give you $10 for it.
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Old Oct 6, 2017, 06:52 PM   #9
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I have built a 2.3 road race motor with a sleeve before. It too made 500ish whp with 0 issues. I'd just re-sleeve it and roll!
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Old Oct 6, 2017, 07:15 PM   #10
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I would trust a sleeve in a 4g63 before a 4b11 or other aluminum-block engine. At least the metals are somewhat the same and should heat/cool/etc the same.
I'm no engineer.. just seems that it would be okay. For how long, I'm not sure. Interesting, though. Especially if you can get away with only doing one.
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Old Oct 6, 2017, 11:21 PM   #11
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Sleeving V8 blocks is quite common. Just one cylinder though.
More to the point.....how did the damage occur?
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Old Oct 7, 2017, 01:00 PM   #12
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.
More to the point.....how did the damage occur?
Actually, that's not the point of this thread.
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Old Oct 7, 2017, 03:58 PM   #13
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Well it is because that's what determines whether or not it's fixable.


For example if it's got a minute hole in the wall (I've seen it with Toyota diesels), it's caused by rust and lack of antifreeze. Probably all the bores are going to fail. Throw it out.


If it's had a circlip fall out and it's got a floating pin, that'll gouge the wall.
That's an easy fix with a sleeve.

If it broke a rod and it went through the wall.......I'd throw that out too.

Last edited by RightSaid fred; Oct 7, 2017 at 05:00 PM.
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Old Oct 9, 2017, 01:54 PM   #14
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Well it is because that's what determines whether or not it's fixable.


For example if it's got a minute hole in the wall (I've seen it with Toyota diesels), it's caused by rust and lack of antifreeze. Probably all the bores are going to fail. Throw it out.


If it's had a circlip fall out and it's got a floating pin, that'll gouge the wall.
That's an easy fix with a sleeve.

If it broke a rod and it went through the wall.......I'd throw that out too.
No, it's not.
OP asked if our blocks can be sleeved and still be reliable. Nothing you are saying has anything to with sleeving a block.
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Old Oct 9, 2017, 02:56 PM   #15
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Originally Posted by kaj View Post
No, it's not.
OP asked if our blocks can be sleeved and still be reliable. Nothing you are saying has anything to with sleeving a block.

Have you ever sleeved a block yourself?


I have.



The proper answer is to take it to your local machine shop where they'll measure it and inspect the damage and make the decision from there.

No good asking a bunch of kids on a forum.

Last edited by RightSaid fred; Oct 9, 2017 at 04:10 PM.
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