The engine in D'Alessandro's awesome white GN is a 231-cubic-inch street engine that runs through a fully stock exhaust system (less catalytic converter). Using a new high-flow Kenne-Bell turbo, the ...

With the advent of the personal luxury coupe in the mid-1970s—not to mention the stringent federal and California regulations that quickly signaled the demise of high-output engines—the automotive ...

Buick Grand National and especially the GNX, but there was little-known Regal-based turbo-six coupe that preceded them.

After a boring year that didn't bring anything new to the table, the 1986 Buick Grand National received a welcome upgrade in the engine department. The carmaker came up with a modified engine upgrade, ...

This 1987 Buick Grand National, a 6.50-certified race car with a 408 LS engine and 1320 Fabrication single turbo, features a clean title, full cage, and advanced Holley Dominator electronics, ...