This 1987 Buick Grand National is powered by a modified turbocharged 3.8-liter V6 mated to a rebuilt four-speed automatic transmission, and it is finished in black over two-tone black and gray upholstery. The turbocharged 3.8-liter V6 is said to have been modified under previous ownership with the installation of a GN1 Performance long-rod stroker kit with a 4340 steel crankshaft, H-beam connecting rods, and JE Pistons. Other modifications include a Super Extreme radiator and dual SPAL fan, a…
This 1987 Buick Grand National is powered by a modified turbocharged 3.8-liter V6 mated to a rebuilt four-speed automatic transmission, and it is finished in black over two-tone black and gray upholstery. The turbocharged 3.8-liter V6 is said to have been modified under previous ownership with the installation of a GN1 Performance long-rod stroker kit with a 4340 steel crankshaft, H-beam connecting rods, and JE Pistons. Other modifications include a Super Extreme radiator and dual SPAL fan, a Super Extreme intercooler, a roller camshaft and lifters, a triple-ball-bearing turbo, 60-pound injectors with a TurboTweak chip kit, a mass-airflow translator box with an LS1 MAF sensor, an Aeromotive Stealth 340 fuel-pump regulator, a fuel-rail pressure gauge, a hot-wire upgrade kit, a 3” downpipe with a 46mm wastegate and boost-controller combination, a 72mm throttle body, a 3″ aluminum cold-air-intake kit, and Buick-logo valve covers.