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Porsche 911 Backdate

Porsche 911 Backdate

Coupé, 1977


  • 100% incredible stunner, pure driving machine
  • authentic, nut and bolt restoration
  • 3.8 high butterfly, GT3 crank etc. engine

Addicted to customer racing

PORSCHE-911 2.5 S/T

I took it as close as Ferdinand said: I couldn’t find a 911S/T for my required spec and budget. If a 911 S/T is for sale the estimation is 7 digit Number and therefore I had to build it myself.

Porsche developed the S/T, of which 33 were built in 1970 and 1971, taking full advantage of new FIA rules allowing a two-inch wider track. However, we are not 100% certain this is true, as we also found data that suggests the production numbers were as follows:

      • 6 units built in 1969 with a high butterfly engine

      • 15 cars were built in 1970 with carburetor 2247cc engine
      • 6 cars were built in 1971 with an injection 2380cc engine
      • 23 cars (3 factory and 20 customers) were built in 1972 with a high butterfly 2.5L engine

Therefore the 911S/T is a very rare car

Price: EUR 220,000



Limburg a. d. Lahn

Please mention Elferspot when calling Martin Dietrich.

The vehicle in detail

911 S/T 2.5 tribute with 3.8 engine

  • full stripped, nut and bold restoration with more than 1000 pictures to all stages
  • chemical paint removement – craftmanship body work
  • electroplating / cathodic dip painting to striped and modified body
  • period correct repaint to Porsche code: #6410 dolphin grey
  • originally build 29th October 1977 and delivered to California and bought as a first owner car (pink title)
  • Built with the focus on light weight, balance and performance to get the car sub 1000kg
  • fender, S/T arches, rear bumper all steel, reinforcement plates, double oil-cooler, carbon/kevlar roof, hood and front bumper cfk by DP Motorsport
  • 367 hp 400nm 3.8 liter flat six, high butterfly engine built by PS-Historacing, using 100mm Mahle cylinders, Maatzen rods, 997GT3R 4.0 crankshaft, lightweight flywheel, large oil pump, and upgraded Schrick camshafts (more than €50k, receipts included) Engine upgrade was done 2021 and today around 3.8ookm on the run.
  • 915/72 5-speed overhould gear-box transaxle equipped with a limited-slip differential quaife
  • 100l tank, spare wheel strip
  • 4piston original Porsche brake update
  • Bilstein suspension, stonger torsion bar, RSR roll bar font and back
  • modified stearing update by quaife 20% more direct
  • fitted with wide 8×15” origin Fuchs and 9×15“ Minilite with Michelin TB5 course tires, roll cage, 4 point belt
  • BF Torino ST-seats on modified seat slide (people taller than 190 could sit in)
  • 21.504km since restoration, enigne 3.800km since full rebuilt, 21.504k on odometer
  • historical licence plate
  • independent expert opinion / certificate -with the cost for rebuilt by 260-280k Euro
  • Complete check-up before sale
  • Price of 220.000€ is expert market price, or obo

If there is any question please do not hesitate to ask.


Year of construction: 1977
Initial registration date: October 1977
Model: 911 Backdate
Body: Coupé
Series: 911 Backdate/Modified
Mileage: 21504 km
Power: 367 HP
Cylinder capacity: 3.789 Liter
Steering: left
Transmission: Manual
Drive: Rear drive
Fuel: Gasoline
Interior color: Black
Interior material: Fabric/Leather combination
Exterior color: Grey
Manufacturer color code (exterior): #6410 dolphin gray
Vehicle inspection valid until: June 2024
Condition: Fully restored
New / used: Used car
Ready to drive: yes
Registered: yes
Number of vehicle owners: 2

More information

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Porsche 911 Backdate

Price: EUR 220,000

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