Toronto CraigsList 1972 Buick Riviera GS. 455 Stage 1 motor, numbers matching, turbo 400, factory chrome rocker cover, air cleaner, air conditioning, power window-brakes -steering & seats. Bucket console, speed alert, new tires. Everything works. This car is unrestored surviour car, came from California 20 years ago. Excellent condition, asking 19,000.00 CERT or BEST SERIOUS OFFER. I thought the 72 motor would have too much smog stuff to be concidered a Stage 1 motor?