This 1979 Rolls-Royce Silver Shadow II is an extensively modified example equipped with a turbocharged 6.75-liter V8 and a T-19 4-speed manual transmission. Originally sold by Beverly Hills Rolls Royce, the car was owned in California and Las Vegas before being purchased by the seller around four years ago from an estate sale. The build is a follow-up to the seller’s RX-7 project, which was widely documented on /DRIVE and other venues. Since completion, the car has been driven around 1,000 miles and was featured on One Take and Vehicle Virgins. Modifications include a twin-scroll turbocharger, large bumper-mounted intercooler, welded rear differential, trunk-mounted radiator, 19″ Porsche Panamera wheels, and much more. The seller states that approximately $20k was spent on parts and fabrication, which included adding a custom flywheel from AASCO in Anaheim, California, King off-road coilover shocks, a 20-gallon fuel cell, and a custom exhaust from Deeds Performance in Chatsworth. This modified Rolls Royce is now being offered in California at no reserve with a clean Iowa title in the seller’s name.

The exterior appearance of the car has been extensively modified, including prominent coolant lines running from the trunk-mounted radiator over the roof of the car. The hood and grille have been cut to make way for turbo plumbing, and a large intercooler is mounted in place of the front bumper. A 20-gallon fuel cell and homemade rear fender flares can be seen here.

The exhaust pipe exits the passenger-side front fender, and a large side scoop directs air over the trunk-mounted radiator. 19″ Porsche Panamera alloys wear Continental tires measuring 255/40 in front and 295/40 out back. The seller notes that the wheels retain the same rolling diameter as the stock wheel/tire combo.

The dash has been fitted with an aircraft boost gauge, Fox Mustang tachometer, and a speed conversion chart based on transmission gearing and engine rpm. Gears are selected with the poseable mannequin shift lever seen above. A/C equipment has been removed, but the seller states that the heater could be returned to operational condition. A Boss 100W amp powers door-mounted Alpine speakers. The odometer is said to have shown around 55k miles at the time of its removal.

Sparco racing buckets replace the stock seats. The red leather rear bench seat has been retained, and the windows switches and parking brake remain functional. The seller notes that there is no passenger side-view mirror currently mounted.

The trunk houses the battery and a CSF radiator sized for a Mk3 Toyota Supra, with stainless coolant lines running the length of the car. Also seen above are the fuel filler and an external hydraulic fluid reservoir for the King coilover shocks.

The 6.75-liter V8 has been fitted with a twin-scroll Bullseye Power turbocharger, as well as a Synapse blow-off valve and wastegate. A Holley 750 cfm carburetor tuned by CSU Carburetors is adapted to the stock intake manifold with a custom Delga Prototypes adapter and a ProCharge inlet hat. Power is sent to the rear wheels through a welded rear differential and a T-19 4-speed manual transmission with a Ford Mustang clutch. The motor is said to run well and produce good power, though it hesitates slightly when full throttle is applied from idle.

A Wilwood 7/8″ master cylinder replaces the stock component, and Orme Bros. stainless brake lines have been fitted throughout. The motor received fresh Brad Penn oil around a year ago, and the transmission was filled with Redline MTL fluid.

The stock Silver Shadow employs a double-wishbone setup up front, and custom-spec King coilover shocks were selected to accommodate the lengthy suspension travel. New Porterfield front brake pads were installed. A video seen below features driving footage with Matt Farah from The Smoking Tire and an explanation of build details by the seller.