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Engine question C2

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Old Apr 12, 2011 | 12:00 PM
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Default Engine question C2

If the engine in a C2 broke down when the car still had the guarantee and the dealer had to change the engine for a new one, would the engine have the same suffix and numbers as the old engine? Or a blank pad?

Also any difference between the 63, 64, 65, 66 and 67 rregarding to the question above?
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Old Apr 12, 2011 | 12:41 PM
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Originally Posted by TheSaint
If the engine in a C2 broke down when the car still had the guarantee and the dealer had to change the engine for a new one, would the engine have the same suffix and numbers as the old engine? Or a blank pad?

Also any difference between the 63, 64, 65, 66 and 67 rregarding to the question above?
Complete engines (as-shipped from the engine plant) were only available while they were still in production; when that model year's engines were no longer in production, they might use a similar engine in production from the next model year, or a new short block with bolt-on parts (heads, intake, water pump, etc.) transferred from the failed engine. Complete engines had the usual engine plant date/suffix stamping, and short blocks had blank pads.

I don't recall what the warranty period was on '63-'66 cars, but it was a year or less. 67's had a 5-year/50,000-mile powertrain warranty.
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Old Apr 12, 2011 | 12:55 PM
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Adding to JohnZ’s reply, here’s my story: the original owner of my ’67, told me the “engine” was replaced by the dealer while it was still under warranty due to excessive oil consumption. The original owner is now 85 and not much of a “car guy” so he’s a little fuzzy on exactly what was done to the engine. It has a ’67 Corvette block, casting number 3892657, but with a date code of H287 (August 28, 1967), which is later than the car build date of May 19. The engine pad has been stamped V0417HE which is the same as the original engine stamp according to the POP, but with no VIN stamp. The heads are both dated February ’67, implying they are the original heads. My conclusion is that the dealer did a short block replacement and re-stamped the block to match the original POP engine code.

Forgot to mention that the stamp is a larger font and doesn't appear to be an engine plant stamp.

Last edited by Mike67nv; Apr 12, 2011 at 01:09 PM.
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Old Apr 12, 2011 | 02:15 PM
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So as JohnZ and Mike67nv say you can have the stamp from when the swapped engine was put in the car or have the engine pad stamped with the number the broken engine had but without the partial VIN?

Also this may differ from dealer to dealer?

But is it a matching numbers car if you dont have the original recipt from when the engine swap was done? If the job was done under the guarantee did you recive a recipt?
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Old Apr 12, 2011 | 02:35 PM
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Originally Posted by TheSaint
So as JohnZ and Mike67nv say you can have the stamp from when the swapped engine was put in the car or have the engine pad stamped with the number the broken engine had but without the partial VIN?

Also this may differ from dealer to dealer?

But is it a matching numbers car if you dont have the original recipt from when the engine swap was done? If the job was done under the guarantee did you recive a recipt?
if the original engine was replaced by a dealer or anyone else, it is no longer "matching numbers"......unless it is a re stamp
even if it is a re stamp and matching numbers, it is still not original....
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Old Apr 12, 2011 | 06:21 PM
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Originally Posted by midyearvette
if the original engine was replaced by a dealer or anyone else, it is no longer "matching numbers"......unless it is a re stamp
even if it is a re stamp and matching numbers, it is still not original....
I thought the goal is to have our cars "appear as factory original", i.e., not "be original".
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Old Apr 12, 2011 | 06:29 PM
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Originally Posted by midyearvette
if the original engine was replaced by a dealer or anyone else, it is no longer "matching numbers"......unless it is a re stamp
even if it is a re stamp and matching numbers, it is still not original....
But an "Honest" papertrail that proves such a story. Does help it's provenance and value.

Speaking as the owner of a C2 with NO provenance and lots of personal value.
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Old Apr 12, 2011 | 06:35 PM
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Originally Posted by JohnZ
I don't recall what the warranty period was on '63-'66 cars, but it was a year or less. 67's had a 5-year/50,000-mile powertrain warranty.

In 1965 it was 24 months/24,000 miles.

Jim
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Old Apr 12, 2011 | 09:17 PM
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Den samme logikken gjelder også for differensial og overføring dersom de måtte byttes mens under garantien. Hvis de ble byttet ut, de er ikke original. Jeg er enig i at full dokumentasjon av warrnaty utskifting vil tilføre verdi til bilen, men vil ikke være verdt asmuch som en med selve original tog komponenter.

I just love Google translator. I have clients in Stavanger and Lysager and get copied on all sorts of e-mail in Norwegian that I have to figure out.
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Old Apr 12, 2011 | 09:25 PM
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Originally Posted by TheSaint
But is it a matching numbers car if you dont have the original recipt from when the engine swap was done?
It's a matching number car no matter who stamped it where, when or why, even if the stamp looks nothing like the original.

Somebody prove me wrong.
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Old Apr 12, 2011 | 09:27 PM
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Originally Posted by TheSaint
If the engine in a C2 broke down when the car still had the guarantee and the dealer had to change the engine for a new one, would the engine have the same suffix and numbers as the old engine? Or a blank pad?

Also any difference between the 63, 64, 65, 66 and 67 regarding to the question above?
Not sure about corvettes, but on my Buick (1970 stage-1) the dealer did a short-block swap-out. Pad is blank. The original heads, manifolds, carb (original carb is worth more than the engine!) all stayed with the car. Date codes and such are whatever Buick service had on hand at the time IMO. No code matching was done.

Most blank-pad "warrentee replacement" stories are bunk. If its not documented, the car is just another NOM car.
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Old Apr 12, 2011 | 09:29 PM
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Originally Posted by Avispa
Den samme logikken gjelder også for differensial og overføring dersom de måtte byttes mens under garantien. Hvis de ble byttet ut, de er ikke original. Jeg er enig i at full dokumentasjon av warrnaty utskifting vil tilføre verdi til bilen, men vil ikke være verdt asmuch som en med selve original tog komponenter.

I just love Google translator. I have clients in Stavanger and Lysager and get copied on all sorts of e-mail in Norwegian that I have to figure out.
too funny! ...
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Old Apr 12, 2011 | 09:37 PM
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Translation to Candian is much easier. You just add "eh" to the end of every sentence.

Oh, yeah, didn't I tell you to get those mag wheels off "my" car?...lol

Last edited by Avispa; Apr 12, 2011 at 09:39 PM.
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Old Apr 13, 2011 | 11:47 AM
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Originally Posted by Mike Ward
It's a matching number car no matter who stamped it where, when or why, even if the stamp looks nothing like the original.

Somebody prove me wrong.
You are correct, but IMO the casting dates also have to precede the vin build date.
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Old Apr 13, 2011 | 12:17 PM
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Originally Posted by 1snake
In 1965 it was 24 months/24,000 miles.

Jim
Thanks - couldn't recall what it was; do you know what it was for '63-'64 and '66?

I remember my 57's were 90 days/4000 miles.
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Old Apr 13, 2011 | 12:24 PM
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I worked in Burbank Ca. At Crest Chevrolet In the late 60's and I did all the Corvette engine and trans work . I replaced a few engines like a LT1 long block, 327's Short blocks and they had NO numbers on the pad and I dint stamp any numbers on it. Also a few Trans main cases like 350 or 400 but dint think about numbers. No one cared about numbers back then, just repair the car.I worked on many TV stars Corvettes.
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Old Apr 13, 2011 | 12:28 PM
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Originally Posted by JohnZ
Thanks - couldn't recall what it was; do you know what it was for '63-'64 and '66?

I remember my 57's were 90 days/4000 miles.
Sorry John, the only warranty booklet I have is for my 65. Wow, 90 days/4000 miles. That sounds like my back yard warranty, 10 minutes or 10 feet.

Jim
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Old Apr 13, 2011 | 12:31 PM
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My first car was a 64 Chevelle and the warranty was 24 months or 24K miles.
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Old Apr 19, 2011 | 05:04 PM
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A engine with a blank stamp or partial stamp might be a engine changed under guarantee

Avispa Very good translation
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Old Apr 19, 2011 | 05:16 PM
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Originally Posted by JohnZ
Thanks - couldn't recall what it was; do you know what it was for '63-'64 and '66?

I remember my 57's were 90 days/4000 miles.
'66 was 24/24. Had a friend who had a BB and blew the motor twice. After the first incident, they had disconnected the odometer to prolong the warranty period and the brother climbed into the car ten minutes before the dealer tow truck arrived to haul it back for what became another motor replacement. It was 23,6XXX something.
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