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Porsche 911 Modified

Porsche 911 Modified

Coupé, 1977


  • Outlaw in turbo look
  • Complete engine overhaul
  • Original BBS RS rims

For sale is a Porsche 911 S Coupe with a turbo look and a completely revised 3.0l SC ('79) engine, original BBS RS 55/56 and a 915 gearbox ('79).

The car was originally imported back to Germany from Japan – vehicles from the Far East are known for their good care.

A Classic Data appraisal with grade 2 and restoration value of €100,000 is available.

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Price: EUR 67,911




The vehicle in detail

The engine has been overhauled and has run about 3,000 km. An oil change and setting the shipping tile has of course already happened. The car is Bj 08/77 ( 9117301439 ).

The car is currently on original and refurbished BBS RS (8J & 9J) with new tires. The front end is wrapped in yellow. This can of course be removed without leaving any residue.

Contemporary sports seats and door panels in the RS look, as well as a Momo Prototipo Heritage steering wheel (registered) complete the picture. A JP Dansk muffler and stainless steel front silencer are also installed, which underlines the sound of the air-cooled 6-cylinder boxer. The original door panels and center console are still present.

A lightweight radiator grille and a contemporary "ducktail" in the RS look (GFK from DP Motorsport) complete the look. The extension consists of metal fenders at the front and GRP extensions at the rear. The vehicle (except for the engine and transmission) has a mileage of approx. 88,000 km.

Various technical repairs were carried out, such as all brake calipers revised and seals renewed, master cylinder renewed, brake hoses renewed "steel flex", axle boots drive shafts renewed, exhaust system renewed (stainless steel), hinged window seals renewed, new Magnarelli headlights, new petrol lines from Porsche, as well as a complete and correct one Engine revision with Mahle pistons and cylinders (German compression). Only original parts from Porsche were used for the engine revision.

The following work was carried out in detail: engine/transmission unit removed; gearbox flanged off engine; engine completely disassembled and cleaned; Measure the crankshaft bearing aisle in the crankcase for ovality; Bearing aisle bored and honed to 1st oversize in external work; Crankshaft unclogged and all oil bores cleaned and re-clogged; crankshaft bearing surfaces polished; Straightened connecting rods and inserted new bearing bushes in the connecting rod eyes; connecting rod base dimension restored; cylinder heads glass blasted and cleaned; Valve guides pressed out and new oversize guides inserted and honed; Valve seat inserts milled and ground to angular accuracy; Cylinder head sealing surface face-milled; all inlet and outlet valves renewed and adjusted; valve stem seals renewed; Camshaft drive timing chains and sprockets renewed; Dilavar screws removed from the crankcase and renewed; Crankcase reassembled with crankshaft, connecting rods, intermediate shaft and oil pump; new pistons and cylinders installed; completed cylinder heads built; camshaft housing and camshafts installed; Camshaft timing adjusted; Engine sheeting and cooling air ducts installed; built-in intake system; Relief valve (pop-off) installed in the air filter housing; flywheel and clutch mounted; alternator and cooling fan mounted; Motor and gearbox flanged together and installed; Filled with engine oil and carried out a test run; slight oil leakage found in the area of the oil cooler mount; engine/gearbox removed again to eliminate leaks; Crankcase leak area cleaned and roughened; special sealant applied; After the drying period, the motor/gear unit was installed and a test run was carried out.

Invoices from a renowned Porsche workshop for the majority of the aforementioned repairs, as well as the complete engine revision, are available. I am happy to send more photos or information on request and serious interest.

An exchange (with additional payment if necessary) for another adequate Zuffenhausener,
such as 944 964, 912, 911 Targa or 993 possible.

For any inquiries, I'm willing to help.

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Year of construction: 1977
Initial registration date: August 1977
Model: 911 Modified
Body: Coupé
Series: 911 Backdate/Modified
Mileage: 88000 km
Power: 180 HP
Cylinder capacity: 3 Liter
Steering: left
Transmission: Manual
Drive: Rear drive
Fuel: Gasoline
Interior color: Black
Interior material: Leatherette
Exterior color: White
Vehicle inspection valid until: June 2023
New / used: Used car
Ready to drive: yes
Registered: yes

More information

Elferspot magazine Porsche Backdate/Modified

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Porsche 911 Modified

Price: EUR 67,911

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