C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Aug 21, 2020 | 03:52 AM
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Hi Everybody,

This is the VIN 1G1YY0788F5107034 for my 85 4 plus 3. Does the 51 mean the Z51 suspension is in the car.

Thank you
Joe
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Old Aug 21, 2020 | 05:12 AM
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No!
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Old Aug 21, 2020 | 05:16 AM
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thank you!!!

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Old Aug 21, 2020 | 08:18 AM
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VIN decoder.
https://www.corvette-web-central.com...html#1981-2013
RPO label location.
https://corvettesalvage.com/where-is...label-located/
RPO codes.
https://corvettesalvage.com/1985-corvette-rpo-codes/

Last edited by James93LT1; Aug 21, 2020 at 08:27 AM.
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Old Aug 21, 2020 | 08:27 AM
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Thank you
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Old Aug 21, 2020 | 10:34 AM
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Old Aug 29, 2020 | 08:11 AM
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You want to read the RPO sticker to learn how your car is equipped. For an 85, if it is still in the car it is a White sticker located on the underside of the rear, left storage compartment cover (on the driver side) of the car.

Last edited by slammin; Aug 29, 2020 at 08:13 AM.
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Old Aug 29, 2020 | 12:14 PM
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Originally Posted by ihatebarkingdogs
If the sticker is gone, these pics are of the front spring, steering rack, and lower A-arms on my Original Owner, unmolested 1985 #26553 with Z51. If you car has similar identifiers, it is probably a Z51. Sway bar diameters are another clue to Z51 content. So are the wheel widths, if the wheels are original to the car, which 35 years later, they may not be.
This is likely the complete VIN for IHBD 1985 'if he posted correct last 5' - you can see the similarities of his/yours. You do need to ID components.

1G1YY0786F5126553

This should be a quite complete GM VIN CARD 'decoding info'

https://www.genuinegmparts.com/src/p...0_Vincards.pdf 1985 I believe is on page 75

Last edited by WVZR-1; Aug 29, 2020 at 12:30 PM.
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Old Aug 29, 2020 | 10:54 PM
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I'm not sure what the VIN of my car has to do with helping the OP figure out if his 85 is Z51-optioned or not, but if it will help, here is Dave's (WVZR-1) VIN for his 90: 1G1YZ23JXL5800653. How'd I do, Dave?
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