No Reserve: LSA-Powered 1968 Buick Riviera

Refurbished classic Buick Riviera with supercharged V8 power hits the auction block

Published on Feb. 27, 2026

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This 1968 Buick Riviera has been refurbished and modified with a supercharged 6.2-liter LSA V8 engine and a four-speed automatic transmission. The body is finished in a two-tone Argent Silver and Graystone color scheme, while the cabin features black vinyl upholstery, a power-operated front seat, air conditioning, and a touchscreen infotainment system. The car is further equipped with Rallye-style wheels, power-assisted front disc brakes, and a stainless-steel exhaust system. This modified Riviera is now being offered by the selling dealer in New York at no reserve.

Why it matters

The Buick Riviera was a stylish and powerful personal luxury car during its heyday, and this modified example combines the classic lines of the 1968 model with modern performance upgrades. The use of the supercharged LSA V8 engine and other enhancements make this Riviera a unique and desirable collector's item for enthusiasts of vintage American muscle.

The details

The Riviera's exterior features a two-tone Argent Silver and Graystone color scheme, with details like a power-operated antenna, hideaway headlights, and chrome side mirrors. The car rides on Rallye-style 18-inch front and 20-inch rear wheels wrapped in BFGoodrich g-Force Sport Comp 2 tires. Braking is handled by power-assisted front disc brakes and rear drums, while the rear suspension has been upgraded with boxed control arms. Inside, the cabin has been reupholstered in black vinyl and features a power-adjustable front seat, air conditioning, power windows, and a touchscreen infotainment system. The dashboard is accented with silver trim, and the Lecarra steering wheel sits on a tilting Ididit column ahead of a Dakota Digital VHX instrument cluster.

  • The car was recently acquired by the selling dealer in New York.

The players

Buick Riviera

A stylish and powerful personal luxury car produced by Buick from 1963 to 1999.

GM Performance

The high-performance division of General Motors that develops and produces high-powered engines and other performance parts.

Lingenfelter

A company that specializes in the modification and tuning of high-performance vehicles, including the installation of superchargers.

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What’s next

The 1968 Buick Riviera with the LSA-powered V8 engine will be offered at a no-reserve auction by the selling dealer in New York.

The takeaway

This modified 1968 Buick Riviera represents a unique blend of classic styling and modern performance, making it an attractive option for collectors and enthusiasts who appreciate the combination of vintage American muscle and contemporary upgrades.