C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Jan 23, 2015 | 09:33 AM
  #21  
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Originally Posted by 7T1vette
Curious.... I've never experienced a milling machine that couldn't terminate a cut. There are special-purpose machines that only do certain tasks, but they can still be stopped or have the milling head raised during a cut.
I think what Solid LT1 is saying is that to get the full effect of the decking machine it has to make a full pass so that the entire surface sees the cutters going both directions - one direction on the leading edge and the other direction on the trailing edge. If the wheel was stopped at the end where the number is a good portion of the deck would only see half the cutting action. The other possibility is a 3-axis mill but you would need a big one as well as a special jig to ensure proper orientation with respect to the axis of the crank. Not cheap and my guess is maybe not as good as the decking machine?
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Old Jan 23, 2015 | 10:14 AM
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Originally Posted by 7T1vette
Curious.... I've never experienced a milling machine that couldn't terminate a cut. There are special-purpose machines that only do certain tasks, but they can still be stopped or have the milling head raised during a cut.
Have you ever seen how the decking is done or have you just read about it on the internet?
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Old Jan 23, 2015 | 10:42 AM
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Amazing that the peanut gallery can somehow find a way to hijack a thread into counterfeiting and NCRS bashing.

Oh well.
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Old Jan 23, 2015 | 10:46 AM
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Originally Posted by Mike Ward
Amazing that the peanut gallery can somehow find a way to hijack a thread into counterfeiting and NCRS bashing.

Oh well.
<<Oh dear, another clueless engine shop needlessly decking a block. Too late now.>>

Mike, wasn't it you who sent us off in this direction?
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Old Jan 23, 2015 | 12:05 PM
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Originally Posted by Jim__H
<<Oh dear, another clueless engine shop needlessly decking a block. Too late now.>>

Mike, wasn't it you who sent us off in this direction?
Don't remember mentioning counterfeiting or bashing NCRS. The point was to save the numbers when possible to avoid all the awful things the others brought up.

You're the very rare exception to the standard story we see far too often where an owner gives his original engine to a shop for an overhaul. He gets it back with the pad wiped clean and finds out the shop routinely decks all blocks for a variety of lame reasons, insisting it needs to be done.

Seems you weighed the factors and made the final decision yourself. First time I've seen that come to think of it.
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Old Jan 23, 2015 | 12:34 PM
  #26  
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Originally Posted by Mike Ward
Don't remember mentioning counterfeiting or bashing NCRS. The point was to save the numbers when possible to avoid all the awful things the others brought up.

You're the very rare exception to the standard story we see far too often where an owner gives his original engine to a shop for an overhaul. He gets it back with the pad wiped clean and finds out the shop routinely decks all blocks for a variety of lame reasons, insisting it needs to be done.

Seems you weighed the factors and made the final decision yourself. First time I've seen that come to think of it.
Fair enough, and thanks. But you are right, getting back to the original thread it would be nice of Sullyman56 could post the numbers from his engine. Might give a clue as to why his engine is blue and mine orange.
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Old Jan 23, 2015 | 12:50 PM
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Originally Posted by Jim__H
it would be nice of Sullyman56 could post the numbers from his engine. Might give a clue as to why his engine is blue and mine orange.
His assembly date might explain all. Your engine was built three weeks before the car. There's many examples of engines that were assembled with far less delay, down to 1-2 days in some cases.

If his assembly date is later than yours, it might help narrow down the date when the Flint plant switched over to blue.

If his date is earlier than yours, and if the engine has the expected 0010 casting number it might be something to do with your engine being built away from the main productions lines.
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Old Jan 23, 2015 | 01:11 PM
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Originally Posted by Mike Ward
A question for each of you please- what is the engine assembly date shown on the stamp pad in front of the passenger side valve cover?

Should be Vxxxxyyy where x is digits and y is alpha characters.
Mine is V0825CKZ which translates to Flint, MI on August 25 with CKZ as a 4 speed manual.
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Old Jan 23, 2015 | 01:32 PM
  #29  
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Originally Posted by sullyman56
Mine is V0825CKZ which translates to Flint, MI on August 25 with CKZ as a 4 speed manual.
for that info.

This infers that Flint switched from orange to blue after Aug. 10 and before Aug. 25.

Is your black an 0010 or 0014 and do you know the casting date?
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Old Jan 23, 2015 | 04:24 PM
  #30  
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Originally Posted by Mike Ward
His assembly date might explain all. Your engine was built three weeks before the car. There's many examples of engines that were assembled with far less delay, down to 1-2 days in some cases.

If his assembly date is later than yours, it might help narrow down the date when the Flint plant switched over to blue.

If his date is earlier than yours, and if the engine has the expected 0010 casting number it might be something to do with your engine being built away from the main productions lines.
My block is 3970010 and the casting date is H 16 6 which is August 16, 1976.
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Old Jan 23, 2015 | 04:54 PM
  #31  
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Originally Posted by sullyman56
My block is 3970010 and the casting date is H 16 6 which is August 16, 1976.
Thanks again, I think it all makes sense.
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Old Jan 23, 2015 | 05:09 PM
  #32  
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Originally Posted by Mike Ward
Thanks again, I think it all makes sense.
Wait a minute, I don't think it does. How did my engine get cast on 8/9/76 in Tonawanda and assembled in Fint a day later? I will take a photo of that date tonight and post it. I think I mentioned that the "9" looked weird. Here is all the data, sorry this started out in Excel but I can't seem to get any formatting to stick

Jim H Sullyman56
Car build date Early Sept 1-Sep-76
Eng color Orange Blue
Eng casting date 8/9/1976 8/16/1976
Casting plant Ton. NY "Sag,. MI"
Eng assy date 8/10/1976 8/25/1976
Assy plant "Flint, MI" "Flint, MI"
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Old Jan 23, 2015 | 07:04 PM
  #33  
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Originally Posted by Jim__H
Wait a minute, I don't think it does. How did my engine get cast on 8/9/76 in Tonawanda and assembled in Fint a day later? I will take a photo of that date tonight and post it.
It's a 4 hour drive.

There's been cases of Flint assembled engines being installed in cars built less than 48 hours later in St Louis, 8 hours away.

It's also possible that the '8' is a 3 or a 6.
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Old Jan 23, 2015 | 09:53 PM
  #34  
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Originally Posted by Mike Ward
It's a 4 hour drive.

There's been cases of Flint assembled engines being installed in cars built less than 48 hours later in St Louis, 8 hours away.

It's also possible that the '8' is a 3 or a 6.
I think it is a 3... So yes, it all kind if fits.
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