1970 454 coupe
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St. Jude Donor '13-'15, '17 thru '22
I think it depends on why it can't be seen. If it is just too rusty to make out clearly, I would think that would have little impact to the value of the car. If it has been ground away, or the pad has been otherwise tampered with, I assume most would value the car as if it was an NOM.
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The engine was rebuilt in 1994. The engine pad was affected only on last digit. everything else is ok. I blew up the pic and saw the outline of 9 last digit. Is there anything I can spray on pad to show that.
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Hi T,
I believe the pad shows signs that it's original broached surface was ground off, (the circular swirl marks), and then at least some of the information was re-stamped.
Regards,
Alan
Here are 2 examples of what the broached pad's surface and stamps typically look like on big block cylinder cases.
Notice the 'broach marks' (grooves) run parallel with the cylinder bores. Also notice that the stamps exhibit traits that indicate all the digits/letters were held in a 'gang holder' and were stamped at the same time.
Look at the odd spacing of the digits and letters and the differences in the depth of the impression.
I believe the pad shows signs that it's original broached surface was ground off, (the circular swirl marks), and then at least some of the information was re-stamped.
Regards,
Alan
Here are 2 examples of what the broached pad's surface and stamps typically look like on big block cylinder cases.
Notice the 'broach marks' (grooves) run parallel with the cylinder bores. Also notice that the stamps exhibit traits that indicate all the digits/letters were held in a 'gang holder' and were stamped at the same time.
Look at the odd spacing of the digits and letters and the differences in the depth of the impression.
Last edited by Alan 71; Aug 30, 2017 at 11:39 AM.
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From: Ohio
Thread Starter
Pro
Joined: Jan 2016
Posts: 534
Likes: 12
From: Ohio
1970 454
Hi T,
I believe the pad shows signs that it's original broached surface was ground off, (the circular swirl marks), and then at least some of the information was re-stamped.
Regards,
Alan
Here are 2 examples of what the broached pad's surface and stamps typically look like on big block cylinder cases.
Notice the 'broach marks' (grooves) run parallel with the cylinder bores. Also notice that the stamps exhibit traits that indicate all the digits/letters were held in a 'gang holder' and were stamped at the same time.
Look at the odd spacing of the digits and letters and the differences in the depth of the impression.
I believe the pad shows signs that it's original broached surface was ground off, (the circular swirl marks), and then at least some of the information was re-stamped.
Regards,
Alan
Here are 2 examples of what the broached pad's surface and stamps typically look like on big block cylinder cases.
Notice the 'broach marks' (grooves) run parallel with the cylinder bores. Also notice that the stamps exhibit traits that indicate all the digits/letters were held in a 'gang holder' and were stamped at the same time.
Look at the odd spacing of the digits and letters and the differences in the depth of the impression.
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St. Jude Donor '13-'15, '17 thru '22
There really is no substitute for having someone knowledgeable look at the pad in person.
FWIW: If I was looking to buy that car, I would be concerned about a lot more things than just the stamp pad. If everything else was in order, and a knowledgeable person said the pad looks good for an original stamping with a light decking, I wouldn't worry much about it.
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From: Westminster Maryland
Hi,
"Everything else matches,"
What do you mean by that?
Looking at the part numbers and dates on the carburetor, intake manifold, heads, exhaust manifolds, water pump, fan clutch, and starter, will help determine this engine's heritage and whether it COULD BE the original engine for the car it's in.
What do the stamps look like on the transmission?
Regards,
Alan
"Everything else matches,"
What do you mean by that?
Looking at the part numbers and dates on the carburetor, intake manifold, heads, exhaust manifolds, water pump, fan clutch, and starter, will help determine this engine's heritage and whether it COULD BE the original engine for the car it's in.
What do the stamps look like on the transmission?
Regards,
Alan
Last edited by Alan 71; Aug 30, 2017 at 01:28 PM.
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