1987 Buick Grand National GNX Automatic 2-Door Coupe

Description for Buick Grand National 1987

1987 was the final year for the legendary Buick Grand National. To commemorate this Buick planned a limited production version called the GNX which stood for "Grand National Experimental" produced by ASC McLaren. Only 547 were ever produced. This was created to be the "Grand National to end all Grand Nationals. " Changes included a special Garrett T-3 turbocharger with a ceramic-impeller blowing through a more efficient and significantly larger capacity intercooler with a "CERMATEL (Ceramic/Aluminum) coated" pipe connecting the intercooler to the engine. A GNX specific E-EPROM. low-restriction exhaust with dual mufflers. reprogrammed Turbo Hydramatic 200-4R transmission with a custom torque converter and transmission cooler. and unique differential cover/panhard bar included more of the performance modifications. Exterior styling changes include vents located on each front fender. 16 inch black mesh style wheels with VR-speed rated tires. and deletion of the hood and fender emblems. The interior changes of the GNX included a serial number on the dash plaque and a revised instrument cluster providing analog Stewart-Warner gauges. including an analog turbo boost gauge. Performance was measured with a quarter mile time of 13. 2 seconds at 104 mph and a 0-60 time of 4. 3 seconds. The GNX used a unique torque arm that was mounted to a special. GNX only. rear differential cover. for increased traction. The torque arm rear suspension alters the suspension geometry. making the body lift while planting the rear tires down. resulting in increased traction. We are proud to offer GNX # 105 in all original condition with only 158 miles from new. Shipping and financing available Fees and Taxes: $399. 00 Doc Fee on all Purchases. Out of state buyers are responsible for all state. county. city taxes and fees. as well as title/registration fees in the state that the vehicle will be registered.