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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Aug 2014 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2014 Posts: 35 | Need to sleeve and rebuild my 270 with 0.60 over pistons, OR need a block.
Please lemme know if you can help or point me in a direction [other than hell].
Thx! GiG Kurt | | | | | Joined: Feb 2004 Posts: 29,825 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,825 | How many cylinders need to be sleeved? Other than being a little expensive, there's nothing wrong with a properly-installed sleeve. When I was building race engines as projects with my high school auto mechanics students, we sleeved several "worn out" Chevy 350 blocks that were given to me by race team owners. 8 sleeves later, we has standard-bore engines turning out 600+ HP on the dyno. Of course, I was using the blocks as teaching tools for my advanced-level engine machining students, so labor cost was not a factor.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Aug 2014 Posts: 35 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2014 Posts: 35 | Only one needs sleeved Jerry,
it's the high cost and low availability of parts here in Phoenix that has me in panic mode! | | | | | Joined: Feb 2004 Posts: 29,825 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,825 | Sleeves are sold by cylinder diameter and length; they're not engine-specific. If you've got minor cylinder wall scoring to deal with, use the thinwall type (3/32" wall thickness) or if there's a hole in the cylinder, use the 1/8" thick heavy-wall sleeve. Give me a top-to-bottom length measurement of the cylinder, and I can research the proper part number sleeve for you.
Jerry
Edit:
Here are the Melling part numbers for the sleeves that fit a 270:
3/32" wall: CSL 146- - - $38.92 at Summit Racing with free shipping
1/8" wall: CSL 246- - - $40.92 at Summit
Good luck!
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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