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I measure the cylinder and found out i had to bore it .30 over. Block was stock when i took the measurement. My machinist called me late this afternoon and he told me that he did bore the block but one and maybe 3 cylinder needed to be sleeve! He said that he found some rust on the cylinder wall even after boring it .30 over. He said it was
about 140,00$ Canadian dollars per cylinder!
Can this be true? Having to sleeve a engine that's being bore for the first time or is he trying to make money off my back?
Depends:
1: How important is the original block to you.
2: Where is the cylinder wall porousity at. Below ring travel, no sleeve would be required if the pits are small and don't connect to the water jacket.
FWIW I would stash it in the corner and find another block.
Upon disassembling my 327/350 for a rebuild, I discovered all 8 cylinders were sleeved at one time. It appeared that all wrist pins had moved back and forth in the bore and scarred them that bad that they all had to be sleeved. It's the original block so of course I will use it. I am not concerned as it looks as though it's almost as strong as before the sleeving.
Cylinder insert sleeves come in two thickness. Do not use the thin wall sleeves. Sleeving is accepted practice when done correctly. Make sure that the shop uses the thicker wall sleeves. Al W.
I just had a correct 340hp 327 blcok for my 1963 bored 60 over and with no problems. The machinst who has build a few motors for me said the engine bored with no problems. The total rebuild with correct cam will run me $1600 CDN dollars. The pistons were the expensive part.
Look for a recent thread by EBvette (death of a block).
He tells his experience with trying to save his original block by resleeving and how it turned into an expensive waste of time and he ended up still having to replace the block.
From: 1961 Red w/White coves 85,532 Original Miles
Originally Posted by Vandoren
Hi all,
I'm having my 327 /300 hp engine rebuilt!
I measure the cylinder and found out i had to bore it .30 over. Block was stock when i took the measurement. My machinist called me late this afternoon and he told me that he did bore the block but one and maybe 3 cylinder needed to be sleeve! He said that he found some rust on the cylinder wall even after boring it .30 over. He said it was
about 140,00$ Canadian dollars per cylinder!
Can this be true? Having to sleeve a engine that's being bore for the first time or is he trying to make money off my back?
Thanks all
The block in my 58 needed all 8 cylinders resleeved. The block had been bored out .125" , so it was the only way to go. My machinist ordered the thick wall sleeves and it is now standard bore. If the sleeving is done properly it is not a big deal and is done all the time. He cut each cylinder down until there was about a 1/4" ledge at the bottom of each cylinder to prevent the sleeve from sliding down. He then applies a sealent around each sleeve before pressing it in place. The top of the sleeve was then machined flat and he finished the top of the block surface by hand so that I would not loose my original stamp on the pad. It cost $600.00 to do it and that included the sleeves. The engine runs fine with no leakage. It is an extra pricey expense, but neccessary for my rebuild. He told me in the 20 years he had been in business, he had never had a problem with a sleeved cylinder that he did.