1975 Porsche 911S Silver Anniversary

How many owners?

Two owners.

How many miles on the engine rebuild?

Just over 7k miles on a professional and documented engine rebuild.




Engine Size

2.7 liter

Transmission Type

Type 915/40 5-speed 





1975 Porsche 911S Silver Anniversary

This 1975 Porsche 911S is #620 of 1,063 Silver Anniversary models produced. The car is finished in Diamond Silver Metallic with a dark blue leatherette interior with most of the original tweed inlays and was acquired by us in 2021. Power is provided by the original fully rebuilt 2.7L flat-six, and factory equipment includes the original 5-speed manual transaxle, cookie cutter wheels, second set of 16″ Fuchs alloy wheels and more. 

Recent maintenance included a valve adjustment, new oil cooler thermostat, new engine insulation pad, trunk and hood struts, air filter, and oil and filter change. This 911S is now offered with engine rebuild record, owner’s manual, and a clean title. 

The interior is trimmed in dark blue leatherette with the original tweed inlays on the rear seats, as well as on the door and rear side panels. A Blaupunkt head unit and speakers have been added. Both front seats were recovered in black velour, during prior ownership.  A Momo Prototipo steering wheel fronts VDO instrumentation including a 150-mph speedometer and a centrally-mounted tachometer. The five-digit odometer shows just under 120k miles, approximately 7k of which have been added since the engine rebuild was completed.

Original cookie cutter 15″ wheels are wrapped in new Riken 205/65VR15 sized tires. The suspension was rebuilt in 2007, and the car was equipped from the factory with front and rear stabilizer bars.  Suspension upgrades included turbo tie rods, lowering to Euro ride height, steering lift kit, larger stabilizer bars, new front and rear torsion bars.

The original air-cooled 2.7L flat-six (number *6450891*) is mated to the original Type 915/40 five-speed manual transaxle. A complete engine rebuild was completed in 2007 @ 112,295 miles with Mahle 90mm pistons and cylinders, oil fed chain tensioners and 930 valve covers.  Upgrades included adding a front oil cooler, installing higher capacity oil pump, trimming baffles between cylinders to increase air flow, stainless steel heat exchangers and time certs.  Service in January 2023 included a valve adjustment, new oil cooler thermostat, trunk and hood struts, air filter, and an oil and filter change.  

Power is sent to the rear wheels through the orginal type 915/40 five-speed manual transaxle.  Upgrades include short shift kit. 

Detailed engine rebuild record, original tool kit, and manufacturer’s literature are also included in the sale.




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