Few American muscle cars carry the same reputation as the 1970 Chevrolet Chevelle LS6. Drop the roof and add the right combination of factory options, and things become considerably more interesting.
One such car is heading to Mecum’s Kissimmee 2027 auction in January. Finished in Astro Blue over a Bright Blue interior, this LS6 convertible combines one of Chevrolet’s most famous big-block V8s with an unusually rare specification.
Mecum says it is one of just 18 known LS6 convertibles equipped with an automatic transmission, Positraction rear axle, bucket seats, center console, and SS dashboard. Better yet, it comes with two original build sheets documenting its configuration.
This isn’t an unknown car emerging after decades in a forgotten garage, either. It has passed through notable collections, earned major show recognition, and received a body-off restoration to factory specifications.
The LS6 Was A Muscle-Car Monster
Under the hood sits Chevrolet’s 454-cubic-inch LS6 V8, factory rated at 450 horsepower. That was an enormous figure for 1970 and helped turn the LS6 Chevelle into one of the defining machines of the original muscle-car era.
This example sends that power through an automatic transmission rather than a manual. It also features power steering, power brakes, and a cowl-induction hood, while Rally wheels with correct-style reproduction tires complete the period appearance.
It Started Life As A GM Company Car
According to Mecum, the Chevelle was originally billed to General Motors and used as a Zone Representative company car. Its subsequent ownership history includes the collection of publishing executive and renowned car collector Otis Chandler, followed by another prominent Northern California collector.
The car spent over 20 years inside a climate-controlled California muscle-car collection. Its body-off restoration was completed more than three decades ago, yet the auction photos suggest it has been carefully preserved since.
That restoration also earned recognition from the Antique Automobile Club of America. In 1999, the Chevelle received a First Place award at the AACA’s Hershey Fall Meet.
Documentation Makes This One Even More Appealing
Rare muscle cars are particularly desirable when their history can be supported by period paperwork, and this Chevelle has an important advantage. Both original build sheets accompany the car, along with service records.
The equipment itself is relatively straightforward beyond its coveted drivetrain and option combination. There’s an AM radio inside, while the Astro Blue exterior and matching Bright Blue cabin give the convertible an especially striking period look.
It Heads To Kissimmee In January
The LS6 will cross the block at Mecum’s Kissimmee 2027 auction on Friday, January 15. Mecum hasn’t published an estimate, so its eventual price remains anyone’s guess.
Its combination of LS6 power, convertible bodywork, rare factory equipment, strong provenance, and original documentation should ensure plenty of attention. When a muscle car checks this many collector boxes at once, bidding can get serious very quickly.