1975 Porsche 911S 3.6L PrivateCars - North Saint Paul - 4 views
This 1975 Porsche 911S is finished in red over a black interior and was purchased by the current owner in 1984. Power comes from a 3.6-liter flat-six sourced from a 1991 964 paired with a 915 five-speed manual gearbox. Additional modifications include IROC-style bumpers, steel fender flares, a ducktail rear decklid, a Mocal oil cooler, Bilstein struts, Recaro seats, and more. Work in 2019 included new brake hoses, a brake fluid flush, and an oil change. This 911S is now offered on behalf of the current owner with factory literature, partial service records, spare parts, and a clean Minnesota title.
Originally finished in green, the car has been repainted red and features IROC-style bumpers, a ducktail rear decklid, and Hella H1 headlights. Steel 930 fender flares are reportedly OEM items and feature a Porsche part number. The stock bumpers and front valance are included in the sale. Imperfections include a crack in the paint on the roof and several paint chips that can be viewed in the gallery below.
Staggered-width 16″ Fuchs-style wheels wear older Sumitomo HTR tires measuring 205/55 up front and 245/45 out back. Suspension modifications reportedly include a lowered ride height, front Koni inserts, rear Bilstein struts, adjustable spring plates, larger-than-stock rear torsion bars, and polyurethane suspension bushings.
The interior is finished in black and features cloth Recaro bucket seats, a Momo three-spoke steering wheel, and an Alpine cassette stereo. The stock seats and steering wheel are included in the sale. VDO instrumentation includes a 150-mph speedometer and a centrally-mounted tachometer. The five-digit odometer is currently inoperable and is stopped at 71k miles. Total mileage is unknown.
The 3.6-liter M64 flat-six was removed from a 1991 Porsche 964 and rebuilt by Auto Edge, Inc. of Mahtomedi, Minnesota in August 1999 with new pistons, cylinders, and rings. Modifications reportedly performed after it was installed in this car include stainless steel headers, a two-into-one muffler, a Mocal front-mounted oil cooler, a Patrick Motorsports flywheel, and a Centerforce clutch. An oil change was performed in 2019.
Power is sent to the rear wheels via a 915 five-speed transaxle that has reportedly been rebuilt with taller-than-factory final gearing. An additional 915 transaxle geared for autocross events is included in the sale.
A driving video is provided above, and a clip of the engine running can be viewed below. An additional driving clip is available here.
Filed under: 911, 911 s, impact bumper, impact-bumper