What Are the Specs of a Buick Grand National Engine?

By Staff WriterLast Updated Mar 27, 2020 1:42:53 PM ET

The 1987 Buick Grand National coupe uses a turbocharged 3.8-liter V-6 engine codenamed the LC2 that produces 245 peak horsepower and 355 foot-pounds of torque. A more powerful version of the engine is used in the limited production Grand National GNX that is tuned to produce 300 horsepower and 420 foot-pounds of torque and is powerful enough to accelerate the 3,500-pound Buick from 0 to 60 in 6 seconds.