Pad Stamping

[Walter R.]

Does anyone have recommendation on a vendor that does pad re-stamping? Deceit is not driving force so no threads on stamping ethics please.

[William F.]

Re: Pad Stamping

Since ,"no deceit", I suppose you will promptly and volunterily tell all, judges, buyers, etc. that engine is restamped?

[Troy P.]

Re: Pad Stamping

If I understand it correctly, there is no penalty for a restamp, only for a counterfeit stamping.

For example, if your block was decked and the pad shaved off you can put the correct numbers back with no penalty. (Subject to deduction if the work is not done correctly and the broachmarks not per factory.) However, if you have the stamping changed to make your car or engine different than it came from the factory then that is an attempt to deceive and counterfeit. If that is not correct please let me know.

I investigated this with the Judging Chairman because I'm one of those whose block was accidently decked during a rebuild before I bought the car. I have a record of the original stamping and was contemplating having it fixed.

[Gene M.]

Re: Pad Stamping

If I understand it correctly, there is no penalty for a restamp, only for a counterfeit stamping.


I investigated this with the Judging Chairman because I'm one of those whose block was accidently decked during a rebuild before I bought the car. I have a record of the original stamping and was contemplating having it fixed.

How can an elaborate set up and machining/surface grinding operation be accidental. The operation has to be a deliberate action. It definitely can’t happen all by it’s self. The previous owner must have not been correctly involved in the rebuild specification and implementation.

[Troy P.]

Re: Pad Stamping

Exactly. The previous owner was not a numbers guy and didn't even know the pad had been shaved until I pointed it out. Even then he wasn't initially cognizant of how significant that was to the value of the car. Eventually I got the 63 fuelie at a bargain price.

Even in the case of us NCRS guys there are those that forget to specifically specify they don't want the block decked during a rebuild. Also I've seen blocks shot peened, or whatever the process is, to remove rust before a rebuild and the broach marks got hammered.

All that kind of stuff happens by accident or by lack of knowledge.

[Robert G.]

Re: Pad Stamping

Since ,"no deceit", I suppose you will promptly and volunterily tell all, judges, buyers, etc. that engine is restamped?

How about posting the vin and photos of the pad right now?

[Troy P.]

Re: Pad Stamping

BTW the guidance I got from "on high" relative to restamping a block with the original numbers was not to tell the judges. It wouldn't differ from telling the judges anything else you had done in restoring the car.

Oh, by the way I had the car repainted. So what??? Does it now look factory original?

Once again I believe you are confusing restamping with counterfeiting. Birds of two different feathers.

[Edward J.]

Re: Pad Stamping

Once again I believe you are confusing restamping with counterfeiting. Birds of two different feathers.[/QUOTE]

Troy has a good answer, if it looks like a duck, quacks like a duck, it is a duck. there is no penalty to restore a car and have a restoration engine installed with the correct looking numbers and pad broaching, lets face it there are thousands of Corvettes with these engines. judges know that there is no substitute for a 50 year old stamp.

[Walter R.]

Re: Pad Stamping

WF. I'll never sell car and no plans to have judged but might in future. If your questioning my intent than I can assure you that I would never present as anything other than a non factory stamp but if I do decide to change my mind I'll send you a private post. Engine was never stamped by the way. In my opening post I asked for a reputable vendor to have this service done. Like so many post in this group it turns into a chat room for anything associated with the subject matter and you never get an answer.

[Bill M.]

Re: Pad Stamping

Walter I agree with your statement. a lot of times a simple question turns in to a long drawn out lecture with decimal points and how Zora designed it and you are committing a sin by changing it. Anyway back in 1976 I had my 65 327 300 hp block boiled and decked and guess what the numbers were removed. This was a couple of years before I gave a dam about matching numbers. So I think you have a valid concern.

Bill

[Willard M.]

Re: Pad Stamping

To address your question I would suggest that you check in with some competent Corvette restorers in your area. They will know who does a good job at this and where to get it done. Hemmings also might be another source. Try looking under engines for sale in Corvette parts.

[Gene M.]

Re: Pad Stamping

Exactly.............................

All that kind of stuff happens by accident or by lack of knowledge.

Lack of knowledge yes. Accident no way, like I said it takes a deliberate action plus there is a $$$$ charge associated to it for the machine shop to collect on.

[James G.]

Re: Pad Stamping

I would appreciate those who know correcting me if I am wrong here...

Broaching...
broaches wear and the tooling wears/degrades thus the broach scrapes exhibited should show a progression of degradation determined by the time at which the particular block was broached within the tooling's life cycle.
Other blocks in the same time frame should have broaching which looks QUITE similar.

Flint's SB broach I imagine was put into service with the 265 V8...
Tonawanda's BB broach was put into service maybe with the mystery motor?? in 1962? OR was it closer to the Mark IV introduction in 65?

Is this why the BB's have more distinct broaching marks?

[Ronald R.]

Re: Pad Stamping

I have a 1970 ZR1 one owner prior to me, my pad was rejected and was identified as a "re stamp". It is absolutely the original block, i argued and the judge reversed that call but deducted for broach marks. The marks are visible with the head off but shot blast obscured the broach lines, So what is the best move? Counterfeit the deck marks to look original or pull the head at judging? I personally think undoing original is not the way. RDR

[Don H.]

Re: Pad Stamping

Don't touch it, and take any judging hit. And don't worry about it. Flight judging evaluates typical appearance of originality. You know what you have. If judges say it does not look "typical", what difference does it make to you? You know your car. It is perfect as is. For goodness sakes, don't mess with your original stamp pad.