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07-18-2010, 02:26 PM
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CC Member
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Join Date: Apr 2005
Location: Tucson,
AZ
Cobra Make, Engine:
Posts: 5,391
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Not Ranked
Sleeved Block?
Hey all
I'm by no means an FE expert, so I've got a couple questions for those of you in the know.
Are there any issues with a sleeved FE block?
Can it be re-sleeved?
Is this common practice?
Would you buy a used block that was already sleeved?
Larry
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Alba gu brąth
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07-18-2010, 05:27 PM
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Senior Club Cobra Member
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Join Date: Mar 2005
Location: Meriden,
CT
Cobra Make, Engine: ERA 427 SC s/n 718, 428 FE
Posts: 1,731
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Not Ranked
A couple of sleeved cylinders should be fine. From what I understand, you may not want them all to be sleeved.
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07-18-2010, 06:18 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Nothing wrong with a sleeved block if it was done correctly.
However, if you're going after something like a 390 block, they're plentiful enough that you find another one that hasn't been sleeved. If you're going after a S/O block, then sometimes you do what you gotta do....
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07-18-2010, 07:35 PM
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CC Member
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Join Date: Jul 2002
Location: Greenville,sc,
SC
Cobra Make, Engine: Kirkham 427 (KMP 266); CAV GT40
Posts: 1,464
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I had the same question when buying my 427so a few years back and the best answer I got was that " the sleeves are stronger than the original casting and remember all those high dollar aluminum blocks have eight sleeves and no one bats an eye about it."
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SPF Daytona coupe 055, Roush 427R
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07-18-2010, 07:38 PM
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CC Member
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Join Date: Oct 2008
Location: Avon,
NY
Cobra Make, Engine: 1969 Mustang Fastback Pro-Street, constantly changing ongoing project!
Posts: 746
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That's the way to go, All eight sleeved & done correctly.
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Mick
(Of The Troops & For The Troops)
Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body; but rather a skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, WHAT A RIDE!"
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07-18-2010, 10:20 PM
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CC Member
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Join Date: Apr 2005
Location: Tucson,
AZ
Cobra Make, Engine:
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Thanks guys! I thought the same thing about aluminum blocks and sleeves.
This block in question is a S/O.
Are sleeves available for it?
Larry
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Alba gu brąth
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07-19-2010, 02:48 AM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Absolutely....
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07-19-2010, 07:50 AM
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CC Member
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Join Date: Apr 2005
Location: Tucson,
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Thanks Brent! I may be in touch if I decide to build this engine.
Larry
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Alba gu brąth
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07-20-2010, 08:55 PM
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CC Member
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Join Date: Jul 2003
Location: West Bloomfield,
MI
Cobra Make, Engine:
Posts: 717
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Sleeves work great if properly installed. Poorly installed causes problems. Lots of standard issue shops do not pay attention to what they are doing. Too tight a press causes cracks in the deck from the OD of the sleeve to an adjacent head bolt hole. Too loose or no limiting step will allow the sleeve to drift down under head gasket crush load.
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Engine Masters Challenge Entries
91 octane - single 4bbl - mufflers
2008 - 429 cid FE HR - 675HP
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2005 - 505 cid FE MR - 752HP
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07-20-2010, 09:45 PM
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CC Member
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Join Date: Mar 2003
Location: Arkadelphia, AR,
AR
Cobra Make, Engine: Kirkham 427 brushed aluminum with Keith Craft 527C.I. all aluminum FE
Posts: 992
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Be very careful with sleeved 427 FE blocks. Most do not do them right or know how to do them right. Like Berry said it is all about how they were minstalled and why they were installed. Did it have a cylinder completely blown out or what. Must have a step at the bottom in my opinion to hold the sleeve in place. I feel that there are even certain ways to drive the sleeves in so that you do not crack the block.
Make sure you are buying it cheap enough to fix or that they will stand behind the block.
Good luck, Keith Craft
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Keith C
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