GMC Typhoon

The GMC Typhoon is a high-performance SUV produced from 1992 until 1993 by GMC and based on the 1991 GMC Syclone. Like the Syclone, it is powered by a 4.3 liter LB4 V6 engine with unique pistons, main caps, head gaskets, intake manifolds, fuel system and exhaust manifolds, producing 280 horsepower and 360 pound-feet of torque. The engine is a modified version of the Vortec engine in the standard Jimmy, which originally produced 190 horsepower, with a Mitsubishi turbocharger giving 14 psi of boost and a Garrett water-to-air intercooler. The Typhoon sends power to all four wheels through a 4L60 four-speed automatic transmission.