I'm in the beginning of an engine rebuild I noticed the cylinders have 010 stamped on them and they have no dimple in the center, I assumed they were .010 oversized. Then I was cleaning the old head gasket off the block and I noticed 010 is stamped on the top of the block too. Does this mean the cylinders are original to this block and standard size?
Cylinder stamps
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A few better pictures might give some more clues, but Im surmising that your block was "remaned" in a shop where it was practice to stamp the block with the new oversize numbers.
The the texture on the gasket surface looks like a fly-cutter surfacer was used in a rebuild. If so, that is another indicator of a rebuild.sigpic Whiskeyjack a '68 Columbia 36 rebuilt A-4 with 2:1
"Since when is napping doing nothing?"
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It is common to see .005, .010, .020 and .030 on oversize pistons. It is not all that common to mark the block however I have seen it done on many occasions on marine and duty rated engines. It's a nice touch for future tear down information.
You should be very careful checking the crank if you tear down that far as the crank may of been reground and will require the appropriate bearing shell.
Dave Neptune
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Originally posted by Dave Neptune View Post...
You should be very careful checking the crank if you tear down that far as the crank may of been reground and will require the appropriate bearing shell.
Dave Neptune
Always pay attention to what Dave says about machine work.Last edited by lat 64; 03-17-2022, 12:27 PM.sigpic Whiskeyjack a '68 Columbia 36 rebuilt A-4 with 2:1
"Since when is napping doing nothing?"
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