The History of the Buick Grand National '86 Grand National

The GN Gets an Intercooler

When GM added an intercooler to the Grand National in 1986 it started to become not just a muscle car that proved that there is, in fact, a replacement for displacement, it turned into one of the most potent sports cars of its day. After the engine received a few more tweaks in 1987 the GN was making 245hp and 355 lb-ft of torque. 

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