How Can I Confirm Numbers?
Thread Starter
Racer
Joined: Jul 2004
Posts: 297
Likes: 4
From: Glen Allen VA
How Can I Confirm Numbers?
A quick question for some of you experts. On a 70 LT-1 that has had it's engine rebuilt and the block has been decked, how else can I confirm that the block is truley still the original. Any help would be great, thanks.
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
Originally Posted by avijay
A quick question for some of you experts. On a 70 LT-1 that has had it's engine rebuilt and the block has been decked, how else can I confirm that the block is truley still the original. Any help would be great, thanks.
If the number pad at the front has been wiped due to being decked...you cant...
There is a way of raising the numbers from the metal, it depends on how much was removed...Have you checked the casting numbers etc? whilst this will give you a date, it wont match up with the VIN #. Unfortunately, without the numbers on the front pad for proof, you cant say # matching....
Last edited by jotto; Jul 8, 2006 at 02:27 PM.
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Send it to the FBI forensics lab at Quantico.
Short of that, theres virtually nothing you can do.
Stamped numbers are actually deeper than what is visible to the eye. It possibly can be seen by grinding the surface further, polishing and applying copper salts and acids. It may then be temporarily seen in order to photograph it.
Short of that, theres virtually nothing you can do.
Stamped numbers are actually deeper than what is visible to the eye. It possibly can be seen by grinding the surface further, polishing and applying copper salts and acids. It may then be temporarily seen in order to photograph it.
Melting Slicks
Joined: May 1999
Posts: 2,897
Likes: 0
From: Moon Township PA
Originally Posted by avijay
How would you go about raising the numbers from the metal?
If you are trying to determine if the block is original, look at the casting date and the block number. Post them here along, with your VIN, and someone will chime in as to whether or not the time frame is correct. That is the easy part. If you really want to know if the engine is an LT1, I would think that you have to tear the engine apart and look at the innards.
Gary
