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Old Aug 13, 2001 | 02:46 AM
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Default Numbers question

I have a car that has many correct numbers. I also have the original warranty with the "Protect-O-Plate" and have been able to contact the original owner and verify the car's options from new. One of the few numbers that does not match up with the "Protect-O-Plate" is the engine pad date. The "plate" reads "T0809IT," the engine reads "T1024IT." The engine pad VIN matches up with the VIN number of the car.

When I spoke to the original owner he informed me that he blew the original engine at 3,000 miles and had it replaced at the same Chevy dealer he purchased the car. I am assuming this engine dated 10/24 of the same year is the one he replaced it with. Is this considered a "replacement block" or is that term only given to blocks that were replaced for some reason before being sold to the original owner?

What would NCRS think of this situation? Would they consider this a matching numbers car?
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Old Aug 13, 2001 | 03:36 AM
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Default Re: Numbers question (BAD-L88)

Do you have any documentation from the dealer that swapped the engine out at 3k?
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Old Aug 13, 2001 | 04:03 AM
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Default Re: Numbers question (78Vette-SA)

The dealer is out of business. The owner of the dealership has passed on. I could probably get an affadavit from the original owner stating what happened and what was done.
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Old Aug 13, 2001 | 07:31 AM
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Default Re: Numbers question (BAD-L88)

I believe that the ProtectoPlate number is the original number/suffix from the factory. When an engine is replaced under warranty, the dealer does not restamp it. These engines are typically stamped "CE". SO....I would venture a guess that either somebody restamped the CE block...(does the casting date match up the the car assembly date?)....or that somebody bought a correctly dated motor, replaced the CE, and restamped it. Lets see what others have to say. Would like to know the casting date of the block in your car. Hope this helps. Chuck
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Old Aug 13, 2001 | 12:44 PM
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Default Re: Numbers question (Chuck Gongloff)

Is this engine in a 67 L-88? ( suffix IT ! ) I don't think the term "replacement block" is an officialy defined term. Pls correct me if I am wrong, but I think it is one of those phrases that people throw around and they mean whatever you want it to mean. Sellers use the term to sooth buyers. I think Chuck outlined the 2 possibilities.

Having the protectoplate is a very important piece of documentation, but if you presented the car for NCRS judging I think they would have a hard time getting around the actual engine # not matching the protectoplate. And I would guess the engine date is after the car's build date. (if you didnt show them the protectoplate) Especially on such a rare and potentially valuable car.

You might ask for opinions over in the "factory correct resto" forum. MJ
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Old Aug 13, 2001 | 12:46 PM
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Default Re: Numbers question (Chuck Gongloff)

The casting date is J98 (October 9th, 1968)
The build date of the car is D11 (November 11th)

The pad date on the existing engine is T1024IT (October 24th, 1968)
The pad date in the Protect-O-Plate is T0809IT (August 9th, 1968)

According to a member in the Restoration forum the "CE" code did not start until 1969.

Thanks
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Old Aug 13, 2001 | 12:50 PM
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Default Re: Numbers question (MNJack)

MNJack,

IT is a 68 L-88 engine. I believe the '69 model year started in August 1968. The dates are still in sequence.
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Old Aug 14, 2001 | 12:26 AM
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Default Re: Numbers question (BAD-L88)

Hey! My 68 is a D 13, 2 days after yours!

Interesting dilemna... Without the protectoplate you could present your car as having the original engine, but the p-plate proves otherwise. MJ
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