This 1981 Rolls-Royce Silver Spur is powered by a Chevrolet LS3 6.2-liter V8 that was installed in 2011 and is paired with a replacement TH400 three-speed automatic transmission. Other work performed at the time of the powertrain swap included service to the brakes, electrical system, suspension, steering, and climate control. The car is finished in white over red leather, and equipment includes a vinyl roof, burl wood trim, automatic climate control, power-adjustable front seats, and an Alpine…