Raising partial VIN after block is decked

[elonblock]

Larry,

From what I understand law enforcement people use some sort of acid process to make the stampings readable after it has been machined.

I am not clear if this is the process which they still use, or of there is a better way.

Maybe someone else can chime in?

Elon

[Tracker1]

http://www.chevy-camaro.com/faq/chev...storation.shtm

[ChevyThunder]

I have tried a solution of muriatic acid on the deck pictured below and I did not notice any significant results though I thought what I started with was a bit more defined. However I would not let my experience discourage you from trying .

A friend of mine found the local labs in the SF Bay Area where law enforcement sends a gun when the numbers have been filed off.... they actually x-ray the gun and get good results because the process can image the change in the metallurgy when the numbers were stamped. The lab will also do engine blocks for $400

[John Brown]

Wouldn't hurt much if you tried Magnafluxing it either.

[parsone]

Hello, I was wandering if you could supply the name of the lab in San Francisco that can x ray engine blocks. i have an L78 motor that was decked, suppose to be the original engine. thanks, mark