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Author Topic: Acid wash reveals vin on engine block  (Read 2205 times)
9T4Z
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« on: March 06, 2011, 09:47:44 AM »

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
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Gary 9T4Z

94Z rag blower 491 rwhp (now 505!)
69 Pace Car, 70RS,91Z,91RS
sd1968z28
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« Reply #1 on: March 06, 2011, 04:21:23 PM »

cool, now you know for sure.
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IZRSSS
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« Reply #2 on: March 06, 2011, 05:21:52 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?
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9T4Z
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« Reply #3 on: March 06, 2011, 05:39:34 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.  Cheesy
Not sure who to give credit to... read about acid lifting vin some where before I tried it....
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Gary 9T4Z

94Z rag blower 491 rwhp (now 505!)
69 Pace Car, 70RS,91Z,91RS
lasereye
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« Reply #4 on: March 06, 2011, 08:51:02 PM »

No wonder I can't read mine...I can barely see yours. Grin 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.
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sixt9x33rs
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« Reply #5 on: March 19, 2011, 06:35:30 PM »

Probably a stupid question, but can you acid was it while in the car?
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'69 RS Z/28 Olympic Gold, 711
Flat hood no spoiler, black top, endura, 4:10
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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« Reply #6 on: April 02, 2011, 09:21:09 AM »

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.
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Gary 9T4Z

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