/Backdated 1981 Porsche 911SC Coupe 3.3L for sale on BaT Auctions – ending December 3 (Lot #129,509)

Backdated 1981 Porsche 911SC Coupe 3.3L for sale on BaT Auctions – ending December 3 (Lot #129,509)


This 1981 Porsche 911SC coupe was acquired by the current owner in 2013 as a project and subsequently underwent a multi-year refurbishment and modification process. Work involved backdating the bodywork and repainting it in Signal Orange, refreshing the interior, refurbishing the suspension and brakes, and rebuilding the Type 915 five-speed manual transaxle. The 930/16 flat-six was also rebuilt with “Nickies” 100mm cylinders, 10.5:1 JE pistons, and 46mm PMO carburetors and is now said to displace 3.3 liters. The interior features a replacement Rennline dash as well as a Racemark steering wheel, a RennShift shifter, bolstered GTS Classics seats, and RS-style door panels. Additional equipment includes a 964-style retractable rear spoiler, an RSR-style center-fill fuel tank, a Rebel Racing Products front oil cooler, Elephant Racing chassis and suspension components, Bilstein struts and shocks, 17″ Fuchs-style wheels, an Electromotive XDi ignition system, and a stainless-steel exhaust system with tubular headers. This modified 911SC coupe was previously offered on BaT in September 2023, and it is now offered again on behalf of the owner with a New York title.

Backdated 1981 Porsche 911SC Coupe 3.3L

The Carfax report states that the car was damaged in the left-rear corner in July 2006, and it was involved in a sideswipe collision in May 2013 resulting in disabling damage to the right-front corner. It was declared a total loss by an insurance company in July 2013, and salvage and reconstructed titles were issued by Georgia and New Jersey that same year. The car was subsequently acquired by the current owner, stripped to bare metal, repaired, and fitted with a replacement right door and front fender as well as a 964-style retractable rear spoiler, a fiberglass hood, and fiberglass RS-style bumpers prior to a repaint in Signal Orange. The windshield was replaced, pop-out rear windows were added, and the fenders were rolled as part of the build. Projector-style headlights, amber rear corner lights, Vitaloni-style mirrors, aftermarket hood tie-downs, and a sunroof are additional details. The seller notes a blemish in the paint above the right-rear taillight.

Backdated 1981 Porsche 911SC Coupe 3.3L

Fuchs-style 17″  wheels have black centers and polished lips, and they are mounted with 225/45 front and 245/40 rear Michelin Pilot Sport A/S 3 tires. The braking system features Zimmerman cross-drilled rotors, Hawk HPS pad, rebuilt calipers, braided stainless-steel hoses, and a replacement master cylinder. The car rides on Bilstein Sport struts and shocks and features a replacement steering rack as well as Turbo tie rods and Tarett Engineering rear sway bar drop links. Elephant Racing chassis and suspension components are said to include:

  • Racing bump steer kit
  • Monoball bearings
  • De-cambered ball joints
  • Offset Camber Plates
  • QuickChange spring plates
  • QuickChange front strut brace
  • Sway bar backer plate kit
  • Rear sway bar mount kit
  • Hollow adjustable sway bars
  • Plated and plugged hollow torsion bars

Backdated 1981 Porsche 911SC Coupe 3.3L

The cabin has been fitted with bolstered GTS Classics MonteCarlo bucket seats upholstered in black leather as well as an RS-style carpet set and door panels, the latter of which feature red fabric pulls. A replacement Rennline dash is accompanied by a RennShift shifter with a Stomski shift coupler. The rear seats have been replaced with a custom shelf, and further work is said to have included replacing the headliner as well as the sunroof guides and bushings. The car is not equipped with a heater.

Backdated 1981 Porsche 911SC Coupe 3.3L

The three-spoke Racemark steering wheel frames a central tachometer with a 6,300-rpm redline as well as a 170-mph speedometer, a clock, and gauges for oil level, oil temperature, oil pressure, and fuel level. The six-digit odometer shows 21k miles, and the Carfax report notes a 120k mileage entry in December 2013. Total mileage is unknown.

Backdated 1981 Porsche 911SC Coupe 3.3L

An RSR-style center-fill fuel tank is housed in the front trunk. A Rebel Racing Products front oil cooler and air deflection pan are also equipped along with Elephant Racing finned oil lines.

Backdated 1981 Porsche 911SC Coupe 3.3L

The 3.0-liter 930/16 flat-six case was fitted with “Nickies” 100mm cylinders and rebuilt by Mototron Vintage Sports Car Service of Southhampton, New York, to displace 3.3 liters. Further engine work is said to have involved polishing the crankshaft, truing the connecting rods, and installing the following parts and components:

  • Electromotive XDi ignition system and crank sensor
  • 46mm PMO carburetors
  • 10.5:1 JE pistons
  • Resurfaced Dougherty Racing Cams DC40 camshafts and rockers
  • Carrera RS-spec rocker shaft seals
  • Replacement camshaft springs and retainers
  • Camshaft oil restrictors
  • RACEWARE Engineering cylinder head fasteners
  • Replacement timing chain
  • Aftermarket timing chain idlers, tensioners, and sprockets
  • Bronze valve guides
  • Aftermarket oil pump and finned oil sump cover
  • Replacement oil thermostat and bypass valves
  • Mallory low-pressure fuel pump and regulator
  • Replacement alternator wiring
  • Clewett Engineering serpentine belt drive conversion kit
  • Stainless steel headers and crossover muffler

Backdated 1981 Porsche 911SC Coupe 3.3L

Power is sent to the rear wheels through a Type 915 five-speed manual transaxle that was rebuilt with replacement dog teeth, synchro assemblies, bearings, and seals as part of the build. Further modifications are said to have included installing a Patrick Motorsports lightweight flywheel and a Centerforce dual-friction clutch kit as well as replacement pilot and release bearings and engine and transaxle mounts.

The Carfax report shows the aforementioned 2006 and 2013 damage reports and July 2013 total loss declaration along with the July 2013 and and December 2013 salvage and reconstructed title issuances. History is listed in California, Georgia, New Jersey, and New York from the first entry in October 1990.

The current New York title lists the color of the car as maroon.

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