1986 Buick Regal Grand National

Muscle car powered by 1986 Buick Regal Grand National engine family.

Exact-year, stock-presenting 1986 Grand National retained as the family baseline for the notchback coupe body, black finish, grille, lamps, air dam, hood, blackout trim, emblems, chrome sport wheels, tires, and stance; current condition remains car-specific.

Body Two-door five-passenger rear-wheel-drive Regal coupe

Engine Intercooled 231-cid LC2 turbo V6, 235 hp and 330 lb-ft

Transmission 200-4R four-speed automatic with overdrive

Axle 3.42:1; G80 limited slip optional

Production 5,512 Grand Nationals

Story

1986 Buick Regal Grand National

The 1986 Regal Grand National family combined two-door five-passenger notchback coupe with WE2 Grand National, solid roof, T-top, Astroroof, optional limited-slip axle configurations. This page keeps those factory choices together without treating an engine, stripe, badge, or trim package as a separate car identity.

Engines and transmissions

For 1986 Buick placed an air-to-air intercooler between the turbocharger and throttle body and paired it with sequential-port injection and distributorless ignition. The result was a factory rating of 235 horsepower and 330 lb-ft from 231 cubic inches. Turbo, intercooler, injectors, sensors, ECM calibration, fuel system, exhaust, cooling, transmission, axle, emissions equipment, dates, and records must remain one coherent 1986 LC2 installation. Transmission, induction, cooling, exhaust, axle, emissions equipment, and dates must match the selected engine path.

Chassis and brakes

The body-on-frame G-body used unequal-length front control arms with coils and a four-link, coil-sprung live rear axle. Grand National content added performance-tuned Gran Touring suspension and fast-ratio power steering. Power front discs and rear drums used electro-hydraulic assist; axle, limited-slip, steering, spring, brake, wheel, and tire details still follow the SPID label and individual-car evidence. Brake, steering, spring, damper, axle, ratio, wheel, and tire equipment varied by configuration and must be reconciled to factory and car-specific records.

Body, trim, and proof

Start with VIN or serial, body tag, title, shell, and ownership history. Then reconcile drivetrain, chassis, protected finish, cabin, trim, dates, and records. Replaceable badges, stripes, wheels, or a swapped engine cannot establish factory configuration.

**Frozen-review exact-year rear-quarter view retained for the roof, rear glass, quarter, three-piece spoiler, lamps, bumper, Grand National emblem, chrome sport wheels, and open-hood context.**Charles via Wikimedia Commons · CC BY 2.0

Specs

Car type: Muscle car
Seats: 5
Body: Two-door five-passenger notchback coupe
Engine: 1986 Buick Regal Grand National engine family
Horsepower: 235 SAE net hp at 4,000 rpm and 330 lb-ft at 2,400 rpm
Torque: Configuration-specific factory rating follows engine, induction, emissions equipment, and transmission
Carburetion: Sequential-port electronic fuel injection with turbocharging and air-to-air intercooling

Equipment

First intercooled Grand National model year
235-hp, 330-lb-ft LC2 turbo V6
200-4R overdrive automatic and 3.42 axle
WE2 black exterior, blackout trim, spoiler, chrome sport wheels, and special cabin
Analog cluster with LED tachometer and turbo-boost display

Linked Parts

Price history

Values

Nominal dollars from original price sheets, auction archives, and approved value references.

Original Price

A verified original price is not yet available for this car.

Values move with paperwork, originality, options, condition, venue, and body style. High bids and guide values are labeled separately from completed sales.

Reference records

Options, Colors & Components

Source-backed details for trim, chassis, production, and authenticity.

Engine Details

Exact-year Grand National with its hood open, retained for LC2 engine-bay layout, intercooler and charge plumbing, air cleaner, accessory drive, brake assist, cooling, firewall, labels, and service context; direct inspection controls individual components.Charles via Wikimedia Commons · CC BY 2.0

LC2 intercooled turbo V6 231 cu in (3.8 L); sequential-port fuel injection; distributorless ignition; Garrett turbocharger; air-to-air intercooler; 235 SAE net hp and 330 lb-ft · Standard 1986 Regal Grand National powertrain · engine assembly / specification
LC2 production calibration Electronic engine controls coordinate fuel, spark, boost, knock response, emissions equipment, and transmission application · 1986 intercooled Turbo Regal application · engine assembly / specification
Turbo and intercooler system Exhaust-driven turbocharger, charge-air plumbing, front-mounted air-to-air intercooler, wastegate controls, intake, sensors, and calibration · 1986 LC2 induction path · carburetor / specification

Transmission

Factory transmission Turbo Hydra-Matic 200-4R four-speed automatic with overdrive and torque-converter clutch

Options

Engines and Induction summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

WE2 Grand National package factory · performance · The Service Parts Identification label must list WE2. Black paint, emblems, spoiler, wheels, interior pieces, or an LC2 swap cannot establish the package.
G80 Limited-slip differential factory · performance · The SPID label, carrier, 3.42 ratio, housing, lubricant, dates, and service history must agree; G80 was not universal.
CC1 Removable glass roof panels factory · comfort · Roof structure, panels, latches, seals, drainage, trim, finish, SPID code, and records must agree.
CF5 Power Astroroof factory · comfort · Roof opening, cassette, motor, switch, wiring, drains, trim, finish, SPID code, and records must agree.
LEAR-SIEGLER Optional Lear Siegler articulated front seats factory · comfort · Seat frames, upholstery, controls, cabin trim, SPID evidence, and records must agree; unusual seating should not be inferred from a current retrim.
COMFORT Power windows, locks, seat, tilt, cruise, and audio equipment by order factory · comfort · Every installed feature must reconcile to the SPID label, harness, controls, dated components, and delivery records.

Paint

19 Black factory · solid

Production

Transmissions summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

1986 Buick Regal Grand National WE2 total · 5,512 · reported

Authenticity

Rear Axle and Ratios summarized from reviewed factory and marque references.Classic Muscle · Reference illustration

VIN, SPID, and WE2 identity 1986 Regal coupe VIN and matching trunk-lid Service Parts Identification label carrying WE2, with title, body, and ownership history that agree · Windshield VIN, trunk-lid SPID label, body and frame stamps, title, warranty and dealer records, and ownership history · fraud detection
LC2 engine and 1986 VIN code VIN engine character 9 and SPID-supported 1986 LC2 with intercooled SFI hardware, ECM calibration, emissions equipment, dates, and records · VIN, SPID label, engine and transmission VIN stamps, block and head castings, turbo, intercooler, charge plumbing, injectors, sensors, ECM, emissions labels, and component dates · numbers matching
Transmission, axle, brakes, and suspension 200-4R, 3.42 axle with open or documented G80 carrier, Powermaster disc/drum brakes, Gran Touring suspension, fast-ratio steering, wheels, tires, dates, and SPID codes that agree · Transmission stamp and controls, axle housing and carrier, SPID label, brake assist and hydraulics, suspension, steering, wheels, tires, service records, and dated components · date correctness
Paint, WE2 exterior, and cabin SPID- and record-supported black finish, blackout trim, spoiler, emblems, chrome wheels, gray and black cabin, seats, console, cluster, steering wheel, roof, and comfort equipment · SPID label, protected paint, body seams, trim mounting, spoiler and roof structure, wheels, cabin, wiring, controls, and delivery records · trim correctness

Still Researching

production The 5,512 model-year total is corroborated, but no reviewed audited ledger breaks production down by roof, Lear Siegler seats, G80, comfort or audio equipment, assembly date, export, or survivor status.
paint colors WE2 establishes code 19 black, but public sources do not provide a complete paint supplier, plant, formula-revision, panel-finish, stripe, wheel-finish, and production-date matrix.
interior Gray and black Pallex trim and optional Lear Siegler seating are documented, but the complete seat, upholstery, stitching, headrest emblem, carpet, belt, roof, comfort, audio, supplier, and running-change matrix is not publicly reconciled.
authenticity markers Public model-year references cannot establish one survivor's born-with WE2 body, LC2, 200-4R, axle and G80 status, Powermaster brakes, suspension, paint, cabin, roof, options, mileage, or component dates.