Porsche 911 Modified

Porsche 911 Modified

Coupé, 1974


  • Ready for Historic Technical Passport (HTP)
  • Period: H1 (1972 to 1975), FIA Class: GTS 27, Group 4
  • FIA homologation form number 3053


911 3.0 Group 4 Rally/Race (FIA) LHD.

FIA homologation form number 3053, Porsche 911 Carrera RS. Period: H1 (1972 to 1975) – FIA Class: GTS 27 – Group 4

Historic Technical Passport (HTP) issued in 2008 (expired 2018), re-application required. Understood to have been built in Austria for historic rally from a 1974 shell. In recent years, it has done little work. Entered in Silverstone Classic in 2018 in the FIA Masters. It benefits from a recently rebuilt engine, dyno tested to 276 bhp (at flywheel) and with a small spares package. Re-applying for a new HTP should be straightforward.

Price: EUR 90,000

United Kingdom

Williams Crawford Ltd
911 Forge Lane
Moorlands Trading Estate
PL12 6LX Saltash
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Safety specification:

  • Sparco Evo II LF FIA approved race seat (valid until 2023)
  • Schroth 6 point racing harness (valid until 2023)
  • ATL (FIA approved) fuel cell (valid until June 2023) Longacre fuel pump shut off switch
  • Lifeline Zero 2000 plumbed in extinguisher kit (valid until 2028, but requires a service)
  • Cartek Battery Isolator
  • 6 point bolt-in ROPS cage.

European and Worldwide delivery available.

  • 3.0
  • RSR High compression pistons
  • Bosch MFI
  • DC80 cams
  • Close ratio (short) 915 5 speed, 8 x 31 final drive
  • ZF limited slip diff
  • 15″ alloys (9 front, 11 rear)
  • GRP hood and trunk lid, front & rear bumpers, arches and front wings.


For more information, photographs, video and to see all of our current stock, please visit our main website, www.williamscrawford.co.uk

Inspection: All our cars are fully inspected and serviced to schedule by our technicians.

Live miles away? Reserve over the phone or internet as do many of our customers. Accurate descriptions, additional pictures, reports and personalised videos provided. We guarantee that if you reserve a car and it’s not as described when you collect or we deliver (Nationwide), then your deposit is returned in full. Don’t worry about the distance, have the car you like. We look forward to your call or email.

Financing: We can arrange finance (subject to status) through one of our associated lenders (including specialist 10 year classic car loans).

Part exchange: Any make of vehicle considered.

Porsche Finder Service: If we don’t have the Porsche you want in stock, call or email. We offer a very successful Finder Service. Let us do the hard work for you….it’s our job.

Williams Crawford Passion for Porsche, established 1991. We deal with all aspects of Porsche; buy, sell, broker, service, restore, custom build, race and event preparation.

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Year of construction: 1974
Initial registration date: July 1974
Model: 911 Modified
Body: Coupé
Series: 911 Backdate/Modified
Mileage: 42647 km
Power: 276 HP
Cylinder capacity: 3,0 Liter
Steering: left
Transmission: Manual
Drive: Rear drive
Fuel: Gasoline
License documents (Click to open): IMG_9859.jpg
Interior color: Black
Interior material: Fabric
Exterior color: Orange
New/Used: Used car
Ready to drive: Yes
Country of delivery: Austria

More Information

Elferspot Magazine Porsche Backdate/Modified

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Adrian Crawford

Adrian Crawford from Williams Crawford Ltd looks forward to your questions and is happy to help you.

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