Modified 1986 Buick Grand National

Description

A 1980s American muscle car that also powered an Indianapolis 500 pole sitter? That could only be the Buick Grand National. 

With the skyrocketing fuel and insurance costs and burdensome government regulations in the 1970s, the old ways of producing horsepower were out. That was when Bill Owen and his Buick engineers began working on a turbocharged 231 cu-in V6. Buick first began offering the Turbo V6 option on the 1976 Buick Regal, then introduced the Regal-based Grand National in 1982. Three years later, a modified version of the Turbo V6 powered Pancho Carter to the 1985 Indy 500 pole.  With the 1986 GN, Buick added an intercooler, upping the ante to 245 hp, making it faster than the Corvette that year.  

This 1986 Buick Grand National was one of 468 exported to Canada that year. A complete rotisserie restoration took place there over the course of 20 years. What was the best of the 1980s is lacking in many ways today, so this GN received a total Pro Touring transformation during that time. The original 1986 Buick Grand National was the class of that era, but wouldn’t you really rather have this Buick? 

Highlights 

• 1 of 468 1986 Grand Nationals exported to Canada 

• 1 of 5,512 1986 Grand Nationals produced  

• Original turbocharged 231 cu-in (3.8 liter) V6 

• Dave Husek custom built PRO Plus 2004R transmission with 3521 torque converter 

• Ridetech TQ TRU turn coil over adjustable suspension and muscle bars 

• Detroit Speed steering components and frame support 

• Baer front spindles and Track 4 disc brakes and E-brake  

• 18 inch Simmons FR-18 wheels 

• New Toyo R888R tires 

• The chassis number (1G4GK4773GP436714) decodes as: 

  • 1– USA 

  • G – General Motors 

  • 4 – Buick  

  • G – Series (G-body) 

  • K – Sales level Regal T-Type 

  • 47 – Regal two-door 

  • 7 – LC2 231 cu-in turbo 

  • 3 – Check Digit 

  • G – 1986 Model Year 

  • P – Pontiac, Michigan assembly plant 

  • 436714 – Sequential production number 

• Clean CARFAX Vehicle History Report  

• Showing approximately 83,000 miles in 2020, and just over 300 miles since restoration was completed; however, the actual mileage is unknown

Features 

• Upgraded original turbocharged 231 cu-in V6 including: 

  • Freshened with all seals and gaskets, comp valve springs, oil pump, water pump 

  • Cylinder head seals are original and unbroken   

  • Comp Cams custom cam  

  • Cruz Performance black billet pulleys  

  • Precision PT6466 S Cover DBB CEA turbocharger with powder-coated inlet and ceramic-coated outlet 

  • RJC Megacooler intercooler and Precision wastegate 

  • Boost Leash boost controller and trunk-mounted 2.5-pound Co2 tank for boost control 

  • GN1 Performance stainless-steel tubular headers and down-pipe, ceramic-coated 

  • 2.5 inch stainless-steel mandrel bent dual exhaust system ceramic-coated 

  • Custom 4 inch powder coated aluminum inlet pipe and relocated air cleaner 

  • 70mm polished throttle body 

• Rotisserie full frame off nut and bolt restoration including: 

  • Concours quality Glasurit rotisserie painted body, firewall, core support and underside 

  • All NOS body seals, mounts, trim, weather stripping, supports, bumper fillers, emblems, and molding 

  • Powder coated frame 

  • Digital LED sequential rear lights and front parking lights 

• Refreshed interior including: 

  • All new seats, carpet, headliner 

  • All new air conditioning 

  • Complete custom stereo Pioneer CarPlay deck, JBL 1000.1, 180.2, and 90.2 amps, 2 capacitors, 2 10” JBL subs, front and rear JBL component mids and tweeters in custom door and hidden mounting locations 

Known Imperfections 

• This 1986 Buick Grand National is presented as a finely modified example and is said to be free from any substantial imperfections 

Included 

• Complete restoration photos, receipts, and documentation 

Ownership History 

The accompanying CARFAX Vehicle History Report places this two owner 1986 Buick Grand National in British Columbia, Canada, and Florida. It showed approximately 83,000 miles in 2020, and just over 300 miles since restoration was completed; however, the actual mileage is unknown. 

Additional Notes 

A Broad Arrow Group Consignment Specialist is working as an agent on behalf of the owner of this vehicle.  

Contact: Cason Vogel  Phone: 904.504.7848  email: cvogel@hagerty.com 

Sales Tax Notice to Arkansas, Mississippi, and West Virginia Bidders: Because this car is located in Florida, Hagerty Marketplace may be required to collect and remit Florida sales tax on your purchase, even if you plan to register it outside of Florida. Unlike most other states, the states of Arkansas, Mississippi, and West Virginia may not provide a full credit against sales taxes paid to Florida. For additional information, please consult this publication and your own tax advisor regarding sales taxes applicable to cars located in Florida that are sold to residents of another state.