VATS System in a 79

[LTZ C20]

I have an idea to put a VATS system in my 79. Vats system is the system in 90's Camaro's and Corvette's where the ignition key has a chip built into it. I was wondering how complicated this system is and if anyone is really ignition or electrically savvy and if they know if it would be hard to put this kind of system in my 79. It would make it a little harder to steal the truck and just a little added security hidden inside an old truck. All knowledge bout this system would be appreciated and if anyone has worked with the Vats system and could help me find out if it is possible or not. Thanks ya'll.

[bake74]

     The Pass-Key, Pass-Key II, or VATS, as it's called in earlier GM vehicles, uses a resistor mounted in the key blank to confirm that the correct ignition key is being used to start the engine. Many people call the resistor pellet a "chip" due to the common misconception that it is some sophisticated digital circuit to identify the key to the car. Not quite. It is not a “chip” of silicon as is customarily used for integrated circuits, but merely a block of carbon appropriately sized to have a desired electrical resistance.
     Very good article.    http://www.thirdgen.org/vats_passkey_system

     Here are some articles on VATS systems.

http://tpiparts.net/vehicle_anti_theft_system__vats_/

     They are cheap on e-bay for a system, but a lot of people would not go through the trouble of installing one.  All you need to have is the 15 different pellets (chips), and you can start the truck anyway.
     In my opinion there are better ways to secure your truck so only you will know how to start it.

     

[Jason S]

Just throwing my $0.02 in: Bake74 hit most of the bases on your question and I really can't add more information specific to your question other than the results you get from VATS  can be done with less intensive methods.  The positives of VATS is you don't have to consciously activate/deactivate a switch every time the vehicle is started.

Other alternatives you may consider is to study the wiring diagram for the ignition system and install a switched relay or switched solenoid to disable power to the starter, distributor or an electric fuel pump.  The switch can be be located in an obscure but accessible location.