24-Years-Family-Owned 1967 Buick GS 400 Convertible

Description

Derived from the Skylark, the 1967 Buick Gran Sport (GS) offered performance wrapped in Buick’s trademark comfort. It was available in three body styles: a sleek two‑door hardtop, a pillarless Sport Coupe, and a convertible, giving buyers a range of sporty options. The GS 400 featured the most notable powerplant, a 400ci V8 producing 340 horsepower. Subtle styling updates included a cleaner grille, new taillights, and subtle badging that set it apart from standard models.

This GS 400 Convertible has been in the seller's family since 2002, and it is finished in red with a white convertible top over reupholstered black vinyl seats. Equipment includes 14" Rallye wheels, a wood-rimmed steering wheel, an alarm system with a GPS locator, and and Alpine audio system linked to aftermarket speakers.

The 400ci V8 was overhauled in 2021, and it's equipped with an aluminum radiator and a Holley four-barrel carburetor. A four-speed automatic transmission delivers power to the rear wheels. (Detailed invoices showing the work performed as part of the engine overhaul are shown in the gallery.)

This 1967 Buick GS 400 Convertible is now offered with removed parts, a car cover, a service book, service records, and a clean California title in the seller’s name.

Highlights

• 400ci V8 fed by a Holley 4-barrel carburetor

• 700R4 four-speed automatic transmission

• Finished in red with a white convertible top

• Reupholstered black vinyl interior

• Service records from current ownership

Factory Equipment

• Dual faux hood scoops and fender vents

• Chrome-finished bumpers and bright trim

• GS 400 badging

• Chrome-accented 14″ Rallye wheels with Buick center caps

• Power-assisted steering and drum brakes

• Low-back front bucket seats and rear bench

• Tachometer in the lower console

Modifications

• Holley carburetor

• Ron Davis aluminum radiator with electric fans

• Aftermarket exhaust system

• PerTronix Flame-Thrower ignition coil

• Alpine head unit with Bluetooth connectivity mounted in the glove compartment

• JL Audio speakers and subwoofer with trunk-mounted amplifiers

• Auxiliary gauge pod mounted under the dashboard

• SmartStart alarm system and GPS locator

Servicing & Documentation

Records for service performed under current ownership are provided in the gallery

• August 2022:

  • Transmission kick-down cable seal replaced

• March 2022:

  • Tires replaced

• October 2021:

  • 400ci V8 engine overhauled

  • Detailed invoices from the engine overhaul can be found in the gallery

• November 2020:

  • Rear brakes serviced

  • Axle shaft seal replaced

• May 2020:

  • Top motor and hydraulic rods replaced

Known Imperfections

• Right quarter panel has a clear coat, while the other body panels are finished in single-stage paint

• Puncture in the left side of the convertible top (see detail photo in gallery)

• Painted wheel accents show wear

• Rust on the right door and near the right fuel tank strap

• Trunk liner is stained

Ownership History

This 1967 Buick GS 400 was acquired by the seller’s father in 2002 and was purchased by the seller in December 2013.

Included Items

• Removed Rochester carburetor

• Spare convertible top hydraulic pump

• Car cover

• Battery tender

• Copy of Buick Performance Engines 1964-1987 by Steven L Dove