1975 Porsche 911 Silver Anniversary 3.5L Custom
Sold
Final bid:$150,000
Categories: Air-Cooled
Auction type: ReserveSold
37 bids

Vehicle Details


  • Year: 1975
  • Make: Porsche
  • Model: 911 Carrera
  • VIN: 9115200237
  • Mileage: 497
  • Transmission: Manual
  • Title Status: Clean
  • Color: Grigio Medio
  • Seller Type: Private Party
  • Location: Scottsdale, AZ 85255
  • Lot #: V-0037911

Commemorating 25 years of Porsche sports cars, the 911 Silver Anniversary was produced in a limited series of 1,063 examples, and approximately 500 are reported to have been sold in the United States. This 1975 Porsche 911 Silver Anniversary Edition was the subject of a full custom build by Patrick Motorsports and has been finished in Medio Grigio over a bespoke Chianti red leather and black Alcantara interior. It features a ducktail rear spoiler, custom metal bumpers, 9Eleven LED headlights, custom Group 4 Fuchs-style wheels, upgraded brakes and suspension, a reinforced 5-speed manual gearbox, and a custom 3.5-liter engine with electronic fuel injection. Having been completed within the last 500 miles, this custom-built 911 is now being offered for auction by its seller out of Arizona.

This 911 has been fitted with custom metal front and rear bumpers as well as an RS-style ducktail rear spoiler, yellow-tinted 9Eleven headlights and LED fog lights, a racing-style driver’s side mirror, darkened taillight assemblies, and custom black-painted Fuchs-style wheels by Group 4. The car was finished in the Ferrari color of Grigio Medio and decorated with black side stripes and red “PORSCHE” lettering. Detailed images are provided in the gallery.

The custom interior was crafted by American Traditions with German square weave carpeting, black Alcantara upholstery, and Chianti red Carlyle Leather on the seats, armrests, and door pulls. Accessories include custom door panels, an Alcantara headliner, a three-spoke MOMO steering wheel, a wood 917-style shift knob, manual window cranks, a drilled aluminum passenger floorboard, and a Bluetooth sound system featuring JL Audio speakers, a subwoofer, and an amplifier mounted in the smuggler’s box. The seller notes an electric air conditioning system is included and can be installed by the next owner.

Power comes from an air-cooled 3.5-liter flat-six engine custom-built by Patrick Motorsports including a 98mm big bore kit with Mahle forged piston and cylinders, a 993 Carrera RS camshaft set, RSR rockers, Clevite rods, oil-fed chain tensioners, Club Sport engine mounts, individual throttle bodies, coil-on-plug ignition, and an electronic fuel injection system paired with a MoTeC ECU. The engine breathes through B&B stainless-steel heat exchangers and a Dansk high-flow sport muffler. Power is sent to the rear wheels through a reinforced 5-speed 915 manual transaxle with a Wevo shift rod coupler, a lightweight single-mass flywheel, a heavy-duty Sachs clutch kit, and a Wavetrac limited-slip differential. The suspension has been rebuilt with all-new bushings, Turbo tie rods, and a KW front strut kit, and the brakes were overhauled with upgraded 964 calipers. Complete build records from Patrick Motorsports are provided in the gallery.

This sale will include owner’s manuals, a toolkit, a spare tire, a car cover, a battery charger, build records, and a clean title.

 
 

The seller would like you to know: “If you are looking for an absolute head tuner, (a car that will always be valeted up front it's so rare) this 1975 Porsche 911 S Silver Anniversary Modified. It is my humble opinion the vehicle is in (1.25) condition "Outstanding to Clean". This is the last of nine Porsches that I have personally built for my private stable. I cannot drive a manual as a result of my hips. Dam getting old. Just the fact that I chose "Patrick Motorsports" to build the entire powertrain, suspension, and the entire undercarriage, plus I added electric AC which works like an AC should work. As we all know air-cooled AC is an oxymoron in Arizona ... but this electric AC recommended by Patrick Motorsports" is a serious AC unit on an air-cooled car.  (NEEDS TO BE INSTALLED W/ MINIMAL LABOR) I have every receipt for this build. After this baby is gone, I have completed my final sale. My hobby build shop is right next to the shop that is a featured Paterson Museum shop. The manager of the shop has consulted with me on this build. The car is finished in a color known as ‘Grigio Medio’ with Alcantara Leather. Thank Your Looking.”

Auction Results

  • Sold for: $150,000
  • Auction End: Dec 26, 2023 07:59:36PM UTC
  • Number of Bids: 37
8,701 views323 saves

Comments (72)

  • ufo1984 4 monthsago

    Sold for $150,000

  • ufo1984 4 monthsago

    Bid in the amount of $150,000

  • PCARMARKET 4 monthsago

    This will sell folks, no DealTank for this beautiful 911.

  • DasAuto602 4 monthsago

    Bid in the amount of $147,000

  • ufo1984 4 monthsago

    Bid in the amount of $145,000

  • abacpm (seller) 4 monthsago

    We are very close to the reserves on this one of a kind

  • DasAuto602 4 monthsago

    Bid in the amount of $141,000

  • ufo1984 4 monthsago

    Bid in the amount of $140,000

  • DasAuto602 4 monthsago

    Bid in the amount of $138,500

  • ufo1984 4 monthsago

    Bid in the amount of $138,000

  • DasAuto602 4 monthsago

    Bid in the amount of $137,500

  • ufo1984 4 monthsago

    Bid in the amount of $136,000

  • DasAuto602 4 monthsago

    Bid in the amount of $135,000

  • ufo1984 4 monthsago

    Bid in the amount of $134,000

  • DasAuto602 4 monthsago

    Bid in the amount of $133,000

  • ufo1984 4 monthsago

    Bid in the amount of $131,000

  • nackulous (registered bidder) 4 monthsago

    Got the popcorn for this last min bidding war.

  • SamHam24 4 monthsago

    Bid in the amount of $130,000

  • ufo1984 4 monthsago

    Bid in the amount of $128,000

  • rmcmenamin (registered bidder) 4 monthsago

    Keep right!

  • SamHam24 4 monthsago

    Bid in the amount of $127,000

  • ufo1984 4 monthsago

    Bid in the amount of $126,000

  • rmcmenamin (registered bidder) 4 monthsago

    That a boy SamHam. This one has fuel injection for the questionable gas in PA

  • DasAuto602 4 monthsago

    Bid in the amount of $125,000

  • SamHam24 4 monthsago

    Bid in the amount of $120,000

  • abacpm (seller) 4 monthsago

    @HHTL Hello,
    About 250 hp and 250 torque. Fast for a light weight car. The Dyno report is in the gallery.

    Thank you for your interest

  • HHTL (registered bidder) 4 monthsago

    Beautiful restoration, how much HP is the engine putting out?

  • DasAuto602 4 monthsago

    Bid in the amount of $115,000

  • SamHam24 4 monthsago

    Bid in the amount of $110,000

  • DasBorsche1 4 monthsago

    Bid in the amount of $105,000

  • DasBorsche1 (registered bidder) 4 monthsago

    I might have to get in this race… I was able to see the car on Saturday, it’s more stunning than I remembered… the lines are the most impressive… whoever did the paint and body work is an artist!!!unbelievable!

  • abacpm (seller) 4 monthsago

    @nackulous Hello @nackulous,

    I always drove the car when it was Spring or Fall in Arizona, the best weather of the year. I am gone out of Arizona for the summers so I never had a need to install.

    Yes, that is the AC kit. I also posted the kit specs in the gallery.

    Thank you

  • nackulous (registered bidder) 4 monthsago

    To be clear, you purchased the AC kit 11/1/2019, but never had it installed? Any reason why?

    Is this the kit?: https://patrickmotorsports.com/collections/electrical-equipment/products/aireleclrfktcrf?_pos=1&_sid=1aaa813f3&_ss=r

  • Dsscpa00 4 monthsago

    Bid in the amount of $100,911

  • DasAuto602 4 monthsago

    Bid in the amount of $96,000

  • abacpm (seller) 4 monthsago

    @Pcajiri Hello, I have uploaded rear interior pictures to the gallery.

    Thank you

  • abacpm (seller) 4 monthsago

    Additional content has been added to the gallery for this listing.

  • Pcajiri (registered bidder) 4 monthsago

    Some pics of rear interior would be needed

  • Dsscpa00 4 monthsago

    Bid in the amount of $92,911

  • Andersenrandy 4 monthsago

    Bid in the amount of $90,000

  • Dsscpa00 4 monthsago

    Bid in the amount of $88,888

  • DasAuto602 4 monthsago

    Bid in the amount of $85,000

  • Love4thecar 4 monthsago

    Bid in the amount of $75,911

  • abacpm (seller) 4 monthsago

    In addition the car has paint protection film and ceramic coating covering the entire vehicle. $7,0000.00 value.

  • fish2556 4 monthsago

    Bid in the amount of $60,000

  • DasBorsche1 (registered bidder) 4 monthsago

    I have personally seen this “carriage” at cars and coffee in Scottsdale. I have to tell you, absolutely stunning! One of the best if not the best I’ve seen. Perfectly balanced, not to much not to little. The pictures don’t do it justice!! This is a 170k car all day long!!! Well done sir!!! I wish this was for sale before I bought mine! Good luck!!

  • Love4thecar 4 monthsago

    Bid in the amount of $52,911

  • Pcarb 4 monthsago

    Bid in the amount of $51,911

  • Love4thecar 4 monthsago

    Bid in the amount of $45,250

  • evokes (registered bidder) 4 monthsago

    This custom is so cool! 😎

  • abacpm (seller) 4 monthsago

    @Love4thecar Hello, I have uploaded the AC specifications to the gallery. Thank you

  • abacpm (seller) 4 monthsago

    Additional content has been added to the gallery for this listing.

  • DasAuto602 4 monthsago

    Bid in the amount of $45,000

  • Love4thecar (registered bidder) 4 monthsago

    What brand AC goes with the car?

  • abacpm (seller) 4 monthsago

    @Speedj1 Hello,

    I will get a driving video showing gear transition up very soon today. Thank you.

  • abacpm (seller) 4 monthsago

    @Bruce914 Hello,

    The VIN# will show the Silver Anniversary edition. I also kept the original anniversary badge from Porsche on the car dash panel with the production number. Thank you for your interest.

  • abacpm (seller) 4 monthsago

    @witz Hello, we built a brand new engine with Patrick Motorsports. Thank you for your interest.

  • SamHam24 4 monthsago

    Bid in the amount of $33,000

  • Speedj1 (registered bidder) 4 monthsago

    How about a ride along going through the gears?

  • Bruce914 (registered bidder) 4 monthsago

    Does the vin tell the silver anniversary status? So much has changed ( for the better) just curious how one can tell. Beautiful car

  • jns7853 4 monthsago

    Bid in the amount of $32,000

  • witz (registered bidder) 4 monthsago

    Did you use the 2.7 motor to get to 3.5?

  • abacpm (seller) 4 monthsago

    @JimKrouskop thank you sir! I agree

  • JimKrouskop (registered bidder) 4 monthsago

    Beautiful car and build! GLWTA! Someone will get a unique and amazing car.

  • abacpm (seller) 4 monthsago

    Thank you CosmicPatriot …. It was a work of love …. Two years to build this magnificent car ….

  • abacpm (seller) 4 monthsago

    I have posted the Patrick Motorsports building of the engine and suspension build ….. just thought people would like to see artist at work ….

  • Carbine123 (registered bidder) 4 monthsago

    One beautifully done!

  • CosmicPatriot (registered bidder) 4 monthsago

    Looks like you've got about $100k in parts & hired labor for the build plus the base car acquisition and all your personal labor into this beauty. Very best of luck with the auction!

  • Russell41 4 months, 1 weekago

    Bid in the amount of $911

  • abacpm (seller) 4 months, 1 weekago

    Also, I have included the original deck lid painted in Grigio Medio with this sale.

  • abacpm (seller) 4 months, 1 weekago

    Hello everyone,

    I am very proud to bring this custom 911 example to market through Pcar. This car means so much to me as my last project and I feel I put every effort into making sure this car turned out exceptional. In partnership with Patrick Motorsports I believe we built such a beautiful performance machine. I had high expectations in working with Patrick Motorsports on this car and they exceeded my expectations. The team I brought together including paint/body, Interior, and audio are all companies I have worked with on past projects and they are all amazing. I am here to answer any questions and have Patrick Motorsports as a resource as well.

    The next owner of this 911 will be sure to catch themselves smiling in the rear view mirror.

    Thank you all very much and good luck!

1975 Porsche 911 Silver Anniversary 3.5L Custom
Final bid: $150,000 Sold
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