Author Topic: Acid wash reveals vin on engine block  (Read 2390 times)

9T4Z

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Acid wash reveals vin on engine block
« on: March 06, 2011, 02:47:44 PM »
Hey all.... when I purchased my 69, the previous owner told me there was no vin on the block.  A couple of years ago I spent some time with some Muriatic acid and washed the rough casting beside the oil filter...

The Vin showed up and I got several photo's before it 'disappeared' again....   the vin plate is for comparison you can make out most numbers..


https://picasaweb.google.com/115099132089091609481/DropBox?authkey=Gv1sRgCMzo8peymq26mwE&pli=1&gsessionid=eGfiHMbGqRPNA3iyNh0tCQ#5580976497379671810
Gary 9T4Z

94Z rag blower 491 rwhp (now 505!)
69 Pace Car, 70RS,91Z,91RS

sd1968z28

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Re: Acid wash reveals vin on engine block
« Reply #1 on: March 06, 2011, 09:21:23 PM »
cool, now you know for sure.

IZRSSS

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Re: Acid wash reveals vin on engine block
« Reply #2 on: March 06, 2011, 10:21:52 PM »
What are you plans? Are you going to leave it alone or have it decked and restamped? Or...are you going to restamp as is?

9T4Z

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Re: Acid wash reveals vin on engine block
« Reply #3 on: March 06, 2011, 10:39:34 PM »
Its on the rough cast area by the oil filter... so put some clear coat and just left it covered with that.... nice find though.  :D
Not sure who to give credit to... read about acid lifting vin some where before I tried it....

lasereye

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Re: Acid wash reveals vin on engine block
« Reply #4 on: March 07, 2011, 01:51:02 AM »
No wonder I can't read mine...I can barely see yours. ;D But then mine is still in the car, 41 years of grime....yada yada....
Glad to see there is hope for when I finally pull the motor. Nice job and pics.

sixt9x33rs

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Re: Acid wash reveals vin on engine block
« Reply #5 on: March 19, 2011, 11:35:30 PM »
Probably a stupid question, but can you acid was it while in the car?
'69 RS Z/28 Olympic Gold, 711
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POP 39,000
69 X77 Z/28 69 711 Original Paint Unrestored
'69 X66 Convertible Cortez Silver 712 black top Endura, auto, bumper guards, am/fm rear speaker 44k miles

9T4Z

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Re: Acid wash reveals vin on engine block
« Reply #6 on: April 02, 2011, 02:21:09 PM »
No such thing as stupid questions.  Yes I did it in the car.  Took off the oil filter and just kept running a paint brush dipped in Muriatic acid on it.  Kept taking photo's on Macro mode before I could tell where the numbers were.... fairly high up on the cast area.