81 gauge cluster swap - out with idiot lights, in with gauges

Does anyone know if you can do a simple swap of gauge clusters without having to change wiring? My 81 Camaro currently has idiot lights in the gauge cluster, and I'd like to put in a cluster that has all the gauges.

Autogauges makes a kit with those gauges

this a photo of mine, sorry its not very good.

photo (http://images.cardomain.com/member_images/2/web/206000-206999/206332_22_full.jpg)