Z71 :Good for you, but at General Motors if the higher ups said "do this" they did this, and they did it the way they were TOLD to do it. And no, they didn't start this in 1969, they started it in the fall of 1967 of 1967 for the start of the 1968 model year. And I THOUGHT I quoted EXACTLY what they were TOLD to do as far as complet CURRENT year engines were concerned. To say when a "new manager takes over" and applying to to GM is plain stupid.
John Z : I'm not saying you don't know what your talking about, but you don't. The serial sequence was:
1) Flint Motor Plant 00001 - 19999
2) Flint V8 Engine plant 20000 - 49999
3) Tonawanda Motor plant 50000 - 69999
Now this is from a memo that states "unless advised to the contrary, we will prresume these arrangements are satisfactory and you will proceed accordingly" (signed)
FACILITIES & PRODUCTION PLANNING DEPARTMENT
Supervisor Planning section
CC: (20 names) and all Assembly Plant Managers
Now in none of the memos I have pertaining to this does it say "plant managers can do something else if they want", and if the memo came down to the plant floor and a supervisor said "this is bullshit" he wouldn't be a supervisor very long. Tell a supervisor to tell a plant manager NO!, and see what the supervisor says. Now wherever the hell it is you work maybe you can go against what a higher up says, try it at a GM plant and they'll hand you your ass on a platter, trust me on this.
I have a series of Inter-Organization Letters between the Central Office and the Engineering Center dated August 1st, August 3rd and August 14th 1967 which cover EXPLICITLY why and how the assembly plants are to proceed with the "CE" identification system. But hey, what do I know, I only worked at a plant that did it.
I don't know where someone got the idea that this system was put in place to track warrentee claims when they went to the 5/50,000 warrentee. That is actually completely ridiculous, it's so not right that makes me laugh. Chevrolet had a dozen different ways to track warrentee claims. The ONLY reason to stamp CE on an engine was to watch for parts departments and/or dealers trying to pull a fast one and do a warrentee claim to get a free engine. This was of course fraud and the company could go after the dealership. Example, ABC Chevrolet puts in a claim for a replacement engine under warrentee. Somehow they bypass the Zone Field Representitive whose SUPPOSED to look at every major claim. At some point the Zone man DOES look at the car, talks to the owner, looks at the stamp pad and either sees or doesn't see the CE code on the pad. That's all hypothetical, and for the most part bullshit, but many is the time they "totaled" an engine, replaced it under warrentee then amazingly the engine fixed itself. Parts departments did "warrentee jobs", or so I'm told. But if they got caught?. Hey, do you think Chevrolet and thier zone rep's were STUPID?. Trust me, dummies didn't get those jobs!. And they didn't do complete or partial engines with out someone USUALLY double checking.
Anyway, to say the CE program went into effect to track warrentee claims is wrong, 90% of all CE engines or engine sub assemblies went other places, parts departments, customer sales, a 1/2 dozen or more places.
As far as the forged crank is concerned it didn't anything to do with "Houston we have a problem". The partial engine assembly serviced 1967-68 L-34 engines (3930854) and they changed from forged to cast cranks at some point in the 1967 model year. So, because this is how Chevrolet worked, they could and did UPGRADE a component, in this case a forged crank was better than a cast crank, they simply made all service engines that serviced both 67 and 68 the same, with forged cranks. That way if your 1968 came with a cast crank and they replaced it with a forged one YOU WIN!. If your 1967 came with a forged crank you got a forged crank YOU DON'T LOSE!. In any event, if they ran out of a part on the line they could use the same part if it was BETTER (any part) but they couldn't substitute a lesser quality part, EVER!. Anyway, the number of partial engines was so small Chevy didn't care.
PS If you think they didn't implement this program until April 1969 clue me/us in what they did from September 1967 until then?. Or did they just not follow orders?.