Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
12-25-2009, 07:05 PM
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Re: 1970 Z28 VIN ON BLOCK
Rick:
Actually, all Van Nuys cars appear to have been VIN stamped on the pad. Also, I have seen some Norwood cars that are pad stamped. I had one 1972 that's pad stamped and was just resold on ebay this week. I don't think there are any absolutes with these cars. JMHO, Ed
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... some old Chevrolets and Pontiacs. 
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#2
12-25-2009, 08:49 PM
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Re: 1970 Z28 VIN ON BLOCK
My 70, VN built, 03C, had the VIN stamped on the pad.
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Tony 55 Nomad Gasser 70 SS 427 Nova 34 Ford Sedan..Hemi powered Michigan/ Florida
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#4
12-25-2009, 09:59 PM
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Re: 1970 Z28 VIN ON BLOCK
I had a 1968 427/335 Corvette with the original decked block. Heated the pad up with a torch and the #s came out in relief. I know it's risky, but the metal is actually compressed when it's stamped, and heating it up "relaxes" the compression. The #s actually are raised when it works.
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#5
12-26-2009, 08:43 AM
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Re: 1970 Z28 VIN ON BLOCK
Will map gas work?
Dave 67 Nova Boy
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#6
12-28-2009, 08:42 PM
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Re: 1970 Z28 VIN ON BLOCK
Why would it be "50/50" if its stamped by the oil filter? If the Vin# is there and its correct, matches paperwork ect.. then i would think thats enough.
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#7
12-28-2009, 10:57 PM
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Re: 1970 Z28 VIN ON BLOCK
vdavie, If clearly legible unmolested VIN # was stamped on bellhousing flange and it was appropriately matched with block casting date, I would agree that the decked block was born with the body.
It does detract from its desireability (IMO) and could well drive some buyers away.
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Chuck Sharin [email protected] Auburn,WA (30 miles South of Seattle) 70 Camaro R/S Z-28, L-78, R/S SS 69 Camaro COPO "recreation"
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#8
12-29-2009, 03:54 AM
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Re: 1970 Z28 VIN ON BLOCK
[ QUOTE ]
Will map gas work? Dave 67 Nova Boy [/ QUOTE ] This is not something for amateurs. You really have to know what you are doing. For example, when you try the raise the #s with heat, you have only one chance to do it as the cast iron molecules change from their original stamped, stressed state to a de-stressed position. The numbers may only be visible for a very brief amount of time for you to capture them with a camera. And if you dont know how to take a macro photograph properly you may have lost your one and only chance.
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#9
12-29-2009, 06:25 AM
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Re: 1970 Z28 VIN ON BLOCK
Not an amateur my friend....I have 31 years of forging with heat. I make high end fasteners for the space shuttle/boeing and work with all temps to very close tolences. Have I done a block? No!! Will I try...Will think this thru for sure. Oh yea....I made SPS rod bolts that we all used back in the day. Ya know what's in my motor.
 Thanks for the info, well taken.Dave 67 Nova Boy
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