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1986 Buick Regal

$134,995

1986 Buick Regal

Vehicle Details

Make

Buick

Model

Regal

Year

1986

Mileage

352 miles

VIN

1G4GK4778GP443397

Body Type

Coupe

Transmission

Automatic

Fuel Type

Gasoline

Engine

TWIN TURBO LS2 409

Description

1987 Buick Grand National Pro Street For Sale
1,150 RWHP Twin-Turbo LS2 * 3-Owner Car * All Original Metal * Race-Ready Pro Street Build
This 1987 Buick Grand National is an extraordinary Pro Street build that combines the timeless styling of Buick's legendary turbocharged muscle car with modern LS performance and race-proven engineering. Built with no expense spared, this Grand National features all original body panels, has been garage kept its entire life, and shows 78,000 original miles on the chassis with just 300 miles on the complete build, all from tuning and dyno testing. Producing approximately 1,150 horsepower at the rear wheels and capable of 1,500+ RWHP, this Grand National offers incredible performance while maintaining exceptional fit, finish, and craftsmanship throughout.

Power & Performance
Power comes from a professionally built LS2 iron-block V8 bored and stroked to 409 cubic inches, topped with a custom Shira Fab reverse-facing intake and twin 72mm turbochargers. Performance highlights include:
Built LS2 iron-block V8
409 cubic-inch displacement
Twin 72mm turbochargers
Custom Shira Fab reverse intake to magically fit under the hood
Approximately 1,150 RWHP
Capable of 1,500+ RWHP
Runs on pump E85 fuel
Built Turbo 400 automatic transmission
3,500 RPM stall converter
Custom 4-inch exhaust system
Built for serious performance, this combination was designed to comfortably run in the 8- second quarter-mile range with the potential to dip into the 7-second zone. Chassis & Suspension
The chassis has been completely engineered to handle extreme horsepower while maintaining excellent adjustability.

Suspension highlights include:
TRZ tubular upper and lower control arms
Fully adjustable TRZ front suspension
Adjustable front coilovers
Adjustable rear blue anodized AFCO Racing coilovers
Custom 4-link rear suspension
Adjustable rear coilovers
Built Moser Engineering M9 Performance Fabricated Housing, customized by M&K Welding
Heavy-duty gears and axles
Detroit Locker differential
The chassis has also been professionally mini-tubbed while uniquely retaining the factory rear seat. Fuel & Cooling Systems
Built to support high horsepower, the car features upgraded fuel and cooling systems throughout. Highlights include:
Custom 15-gallon aluminum fuel tank nestled in a custom tubular enclosure
6-gallon ice tank
Pump E85 fuel system with Aeromotive Pro-Series Pump
Oversized cooling components
Stopping power has been upgraded to match the car's incredible performance.

Features include:
Aerospace 4-piston front disc brakes
Aerospace 2-piston rear disc brakes
Custom Black powder-coated Weld Racing wheels
Mickey Thompson Pro Bracket Radial rear tires (29.5 x 10.5)
The exterior presents as beautifully as the mechanical build underneath. Exterior highlights include:
Original rust-free body with all original sheet metal
Always garage kept
$30,000 laser-straight paint by Impressive Auto Body
Entire vehicle protected with self-healing XPEL Paint Protection Film
De-Badged "Murdered-Out" appearance
Powder-coated factory trim
Powder-coated front and rear bumpers
Ultra Vision polarized windshield film
Rear-mounted parachute
External master battery kill switch
The flawless black finish and clean exterior give little indication of the performance hiding beneath the hood. Interior & Electronics
The interior combines factory appearance with modern race technology in the touch screen dash.

Customizable Displays Specifically for this Grand National, including one that looks just the the original!
Features include:
Holley digital touchscreen engine management system
Dash-mounted electronic boost controller
Professionally fabricated mini-tub while retaining the factory rear seat
Only 352 miles since completion (All Tuning and Dialing in)
78,000 original miles on the chassis
Always garage kept
All original body panels
Professionally built with exceptional attention to detail
Summary
This 1987 Buick Grand National Pro Street is a no-compromise build that combines one of GM's most iconic muscle cars with modern twin-turbo LS performance. Producing 1,150 rear- wheel horsepower with the capability for 1,500+ horsepower, it features a professionally engineered drivetrain, race-ready suspension, premium components throughout, and a stunning show-quality finish. With its original rust-free body, only three owners, all-original sheet metal, and meticulous craftsmanship, this Grand National is equally suited for high-level shows, drag strip events, or any serious performance collection.

A RARE opportunity to own one of the finest Pro Street Grand Nationals on the Market with the check book thrown at it. For Sale By Owner Located In Merrick, NY 11566
Take A L@@K At The Video On YouTube:
Follow This Link To 280 High Resolution Photos: vSsz6

Trim: Grand National Pro Street For Sale
Options: Premium Sound System, Cloth Interior Surface

Buick Regal Buyer's Guide

Full guide
M
Mike Sullivan
Muscle Cars
1973–1987
~3 min read
Updated Apr 2026
The Buick Regal Grand National and GNX are legends of the turbocharged 1980s — cars that humiliated Ferraris at stoplights and proved that American engineering could match European performance on its own terms. But the Regal's story is richer than just the performance variants.
This guide covers
âś“ 8-point inspection checklist
âś“ Common issues & what to avoid
âś“ In-person inspection guide
âś“ Market pricing by year & condition
âś“ 4 FAQs answered
âś“ History & fun facts

Buick Regal Market Overview

Based on 26 Buick Regal listings currently on ClassicCarsArena.com

26
Listed Now
$45,308
Avg. Asking Price
1979–1987
Year Range
Price Position on Our Site — Above Average
This car: $134,995
Low: $6,495 High: $134,995
Transmission Distribution
Automatic 88% ◄
Condition Distribution
Excellent 19%
Good 19%
Data from ClassicCarsArena.com listings Browse all 26 listings →
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What is this car worth?

Check sold prices for the 1986 Buick Regal

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Buick Regal Buyer's Guide

Mike Sullivan here. The 1987 Buick GNX is the fastest American production car of its era. That's not hyperbole — the GNX ran the quarter mile in the low 13-second range, making it quicker than a contemporary Corvette, faster than a Ferrari 328, and quicker than nearly anything else for sale in an American showroom. GM's own engineers reportedly drove the final prototypes against a Ferrari Testarossa and the GNX won.

But here's what the GNX legend obscures: the broader Regal family from 1973 to 1987 is an undervalued platform with excellent bones, strong parts support, and collector interest that extends well beyond the turbocharged variants. The G-body Regal that spawned the Grand National is one of GM's most capable platforms, and even the standard V6 and V8 Regals represent good value in the current market.

What to Check Before Buying

Grand National Documentation — Verify boost gauge, shift light, and underhood components are original GN equipment — not add-ons.
GNX Serial Number (if claimed) — Confirm the ASC/McLaren GNX serial plate and have a Buick specialist verify all GNX-specific components.
Turbocharger Condition — Check turbo shaft for play — hold the shaft and wiggle laterally, any movement indicates bearing wear.
Intercooler Condition — Inspect intercooler core for damage and verify it's free of oil contamination.
Lower Quarter Rust — Probe lower rear quarters and rockers — G-body rust in these locations.
Dashboard Condition — Inspect plastic dashboard for cracking — a common issue on 35+ year old GM interiors.
Transmission Operation — Test TH200-4R or TH350 through all ranges — smooth shifts with no slip.
Head Gasket — Check oil for coolant contamination and exhaust for white smoke — 3.8L head gasket is a known wear item.

Common Issues

Grand National clone cars built from standard Regals — documentation verification is essential. Turbocharger shaft wear and intercooler deterioration on high-mileage GN examples. Lower rear quarter and rocker panel rust. Plastic dashboard and interior trim deterioration on 1980s examples. 3.8L V6 head gasket issues on high-mileage or overheated engines. TH200-4R automatic transmission wear on performance-driven cars.

What to Look For

On Grand National and GNX cars, verify documentation before paying any performance premium — boost gauge, shift light, and specific underhood components are all verifiable. For GNX cars, the ASC/McLaren serial number plate and GNX-specific suspension and turbo components must all be present and verifiable. For all turbocharged Regals, inspect the intercooler condition and the turbo for shaft play. On standard Regals, check for rust at the lower rear quarter panels and rocker panels. Verify the automatic transmission operates smoothly through all ranges.

Price Guide

Standard Regal V6 or V8 (1978–1987): $5,000–$14,000. 1984–1985 Grand National T-top: $18,000–$32,000. 1986 Grand National: $25,000–$45,000. 1987 Grand National: $35,000–$65,000 for clean low-mileage examples. 1987 GNX (verified): $80,000–$180,000+. Clone GNs misrepresented as genuine: avoid without documentation.

Did You Know?

The 1987 Buick GNX outran a Ferrari 328 GTS in a comparison test conducted by Car and Driver — achieving 0-60 in 4.7 seconds to the Ferrari's 5.8 seconds. Only 547 GNXs were built, all in 1987, all black, all numbered. The turbocharged 3.8L V6 in the Grand National was controversial inside GM — Corvette engineers reportedly objected to a Buick outperforming their flagship, though the LT5-powered Corvette ZR-1 program had in fact already begun in 1985.

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