Sold | 1969 BUICK GS400 CUSTOM COUPE

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£89,782

1969 BUICK GS400 CUSTOM COUPE

United States • 23 Jan 2026

Vehicle Details

AI Listing Summary

This 1969 Buick GS400 is a completely modernized "resto-mod" build completed in December 2022. It features a brand new GM LS376 V8 engine, 4L70E transmission, Roadster Shop chassis, Baer brakes, custom exhaust, and rides on Forgeline wheels; the car also has subtle modifications, modern amenities, and was a participant in the 2023 Barrett-Jackson Cup.

Condition

8

The car is described as a "resto-mod" that has been fully reimagined with brand-new components, suggesting it's in excellent condition. It features a new engine, transmission, chassis, brakes, and exhaust system. The body has been tastefully modified, and the interior retains a period feel with modern upgrades like climate control and digital instrumentation. The listing states there are no dents, paint damage, or curb marks.

/ 10

Transmission:

Automatic

Chassis No:

446379Y126707

Odometer:

[Odometer Reading]

Reg Number:

[Reg Number]

RHD/LHD:

[RHD/LHD]

This 1969 Buick GS400 Resto-Mod is powered by a brand-new GM LS376 V8 engine paired with a brand-new 4L70E automatic transmission with a Strange Engineering 9-inch rear end.

This all sits on a Roadster Shop SPEC 3 chassis with Baer four-wheel disc brakes and a custom 3-inch MagnaFlow exhaust system.

Completed by Crown Concepts in December 2022, it represents a full reimagining of this GS400 from the ground up with brand-new components.

It rides on 18-inch Forgeline FL500 wheels wrapped in Continental Extreme Contact Sport Plus tires.

The body has been tastefully modified with shaved drip rails and a custom Buick-style air intake on the LS3.

The exterior was finished in OEM Buick Burgundy Poly Mist accented by subtle black Rally stripes.

An Infinity Box wiring system was utilized along with extensive sound-deadening.

The car has Dakota Digital instrumentation and a Vintage Air climate-control system to keep the interior cool, and upholstery and finishes that retain the period fee...