1990-1996 Buick Regal: Technical Specifications

Only a 3.1-liter V6 was available in 1990 Regals, making 135 horsepower. A year later, Regals could be purchased with a 170-horsepower "3800" V6, which was essentially the same engine used in the Park Avenue and Riviera. That upper engine got a boost to 205 horsepower for '96. Meanwhile, the base engine gained five horsepower for 1991, reaching 140. For 1994, output grew by 20, to 160 horsepower, courtesy of a new fuel-injection system. A 4-speed automatic was the only transmission available, but electronic controls did not arrive until 1993 when the optional 3.8-liter engine rose a bit in torque output to 225 pound-feet. A massive power boost emerged for 1996 in the 3.8-liter engine, which got new valves and roller rocker arms and developed 205 horsepower.