Porsche 911 mit 3.4-Motor (1984)
Porsche 911 with 3.4 engine (1984), converted to 267 hp, extensive investments, expert rating 2, very well maintained overall condition
Overview
The provision is 5% + VAT of the sales price and at least 500 € + VAT.
BID HISTORY
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Start sellingPorsche 911 mit 3.4-Motor (1984)
A 1984 Porsche 911 with a 3.4-liter engine is for sale in pewter metallic with black leather interior.
Highlights:
- Extensive conversion based on a 911 3.2
- Performance-enhanced 3.4-liter engine, power: 267 hp at 970 kg, the engine was converted by Bienert Boxer Motoren in 2015:
- New connecting rod bearings and reinforced ARP bolts
- Cylinder head studs replaced with high-strength ARP bolts
- Sport version flywheel
- Lightweight sport clutch
- Cylinders bored out to 98 mm and recoated
- Newly forged sport pistons (3.4 liter displacement)
- Cylinder heads completely overhauled, including new valves
- Sport valve springs
- Special camshafts
- New engine gasket set
- Injection nozzles overhauled
- Further extensive investments in technology and performance since 2013 – total investments of approx. €40,000
- Completely new original Porsche Turbo brake system (front and rear)
- MBE control unit with comprehensive sensor technology renewed (2018)
- Eisenmann sports muffler, exhaust manifold, and sports suspension components installed
- HEIGO roll cage with Schroth belts
- Stabilizer kit front and rear axle type RSR
- Plexiglass windows
- New Pirelli P6000 tires (04/2024)
- Certificate with a grade of 2
- First delivery Japan
- Current owner for 12 years
- Extensive service history (approx. 20 invoices available)
General information about the vehicle
- Year of manufacture: 1984
- First registration: Japan, 1984
- Location: 82194 Gröbenzell, Germany
- Number of vehicle owners: 2 in Germany (4 owners are listed in the registration document, but 2 of them are dealers), previously unknown
- Accident in previous ownership – according to the previous owner, there was damage to the rear left, which was professionally repaired
- Registered
- H license plate
- TÜV until 05/27
- Ready to drive
Model history
With the Porsche 911, the Stuttgart-based manufacturer set a milestone in sports car construction in 1963. Internally referred to as the "original 911," the first 911 succeeded the Porsche 356 and quickly became the brand's trademark. The second generation appeared in 1973 with the so-called G model, which was characterized by its distinctive bumpers and numerous technical enhancements. To this day, this model is considered one of the most important steps in the history of the 911 and the epitome of Porsche DNA, which has evolved over eight generations.
Facts
Exterior & Interior:
- Exterior color: Tin Metallic
- Interior in black, Recaro racing seats, roll cage, carbon elements – very well maintained condition with only a few minor signs of wear
Engine and transmission:
- 3.4-liter six-cylinder boxer engine with 267 hp
- Manual transmission
- Last service: 10/2024
Mileage:
- Mileage: 112,133 km (as read)
- Mileage verifiable: partially
- No service history available
Documentation:
- Vehicle documents
- TÜV reports
- Approx. 20 invoices
- Expert opinion (grade 2)
Tires, brakes, bodywork & underbody
- Tires: approx. 7mm tread all round, replaced in 2024 (high-quality Pirelli P6000)
- Brakes: very good condition, front discs and pads replaced in 2023
- Bodywork: good condition with minor age-related signs of wear
- Underbody: good condition with no rust holes
- Please view the photo gallery and videos for further insights into the condition of the vehicle.
Known defects
- This is a very well-maintained vehicle. There are no known defects
- Please view the photo gallery and videos for further insight into the condition of the vehicle.
Summary
For sale is a 1984 Porsche 911 with a 3.4-liter engine in pewter metallic with black leather interior. The vehicle has been extensively modified, including increasing the engine power to 267 hp, installing a turbo brake system and improved RSR chassis components, and redesigning the interior. An expert report rates the condition as grade 2. With H license plates, TÜV until May 2027, extensive documentation, and investments of around €40,000 since 2013, this is an interesting specimen for enthusiasts.
Vehicle videos
Kickdown check
- Expert report available
- Kickdown photographer was on site
- Video of the vehicle available
- Main inspection
- Current service performed



Comments of this past auction
Gibt es ein Gutachten für die Leistungssteigerung? Eingetragen ist diese offensichtlich nicht.
Hallo, folgende Fragen habe ich zu Ihrem Angebot: Hubraum und PS Angaben Gutachten vs. Angaben Beschreibung >> welche stimmen? Welcher Motorumbau (3.4 Ltr). Wurde ein Umbau-Kit verwendet, wenn ja welches ? (Cargraphic etc.) Rost? >> es steht nur „keine Durchrostungen“ >> wie sieht es an den neuralgischen Stellen aus? Anzahl Gänge (lt. Gutachten: 4 >> müsste doch eigentlich 915er sein mit 5 Gang, welches Getriebe ist drin? Bilder von Unfallschaden hinten rechts vorhanden? Bitte zusenden. Welche RSR-Fahrwerkskomponenten vom RSR sind verbaut? Danke für kurze Info und vielleicht sehen wir uns bei der Abholung. VG C. Zeller
Hallo CZ7, hier die Antworten des Verkäufers: 1. es ist der originale Motor verbaut, welcher durch eher konservative Tuningmaßnahmen der Firma Bienert Boxer-Motoren leistungsgesteigert wurde. 2. es ist das originale 5-Gang-Getriebe verbaut. 3. dem Verkäufer sind keine Roststellen bekannt. 4. der Verkäufer hat keine Fotos zum Vorschaden, er hat das Fahrzeug repariert gekauft. 5. es sind keine Teile vom RSR verbaut; verbaut ist eine original Turbo Bremsanlage vorne und hinten, die Aufhängung wurde entsprechend angepasst, zusätzlich ein Stabi "Typ RSR" an der Hinterachse, die Dämpfer sind Sportversion. Wir wünschen viel Spaß beim Bieten - Kickdown Team
Hallo christianzeller, wir haben Ihre Fragen an den Verkäufer weitergeleitet und melden uns, sobald wir eine Antwort haben. Beste Grüße - Ihr Kickdown Team