A 1970 Chevrolet Chevelle SS LS6 is set to headline Mecum’s Harrisburg auction on Saturday, July 25, as one of the event’s featured lots. Finished in Tuxedo Black with white stripes and supported by extensive documentation, the muscle car is expected to be among the auction’s biggest attractions.
Mecum Harrisburg Reaches Its Main Attraction
As of Friday, July 24, the Mecum Harrisburg auction had entered its third day, with the event’s Main Attraction vehicles beginning to cross the auction block.
The Chevelle SS LS6 is scheduled for Saturday, the day that traditionally features the rarest vehicles and the highest sale prices. Live coverage is available daily on ESPN+ beginning at 11 a.m. ET through Saturday, while Mecum is streaming every lot on its Live Block Cam.
Last year’s Harrisburg sale saw a 1992 Porsche 911 Turbo sell for $286,000, making it the top-selling vehicle, while a 1969 Dodge Hemi Charger R/T led American muscle cars at $176,000, including premiums.
One-Year-Only LS6 Powertrain
The 1970 Chevrolet Chevelle SS LS6 represents a significant chapter in Chevrolet’s muscle car lineup.
For the 1970 model year, Chevrolet installed the 454-cubic-inch LS6 V8 into the Chevelle after ending its previous engine-size limitation for midsize cars. The engine was factory rated at 450 horsepower.
According to the article, the LS6 was offered for only one model year before Chevrolet discontinued it.
Factory Equipment and Documentation
The featured vehicle is equipped with the 450-horsepower 454 LS6 engine, a Muncie four-speed manual transmission, and a 4.10 Positraction rear axle.
Additional factory equipment includes power steering, power brakes, a cowl-induction hood, headrests, and correct five-spoke SS wheels fitted with reproduction Goodyear Polyglas raised-white-letter tires.
The Chevelle has been repainted once in its original Tuxedo Black exterior color and retains its black vinyl split-bench interior and original body panels.
The documentation accompanying the vehicle includes two original build sheets, with one reportedly discovered beneath the front seat, as well as inclusion in the LS6 Registry. The car was also displayed at Carlisle in 2020 during the engine’s 50th anniversary celebration.
Production Numbers Add to Its Rarity
The article states that Chevrolet built 4,475 LS6 engines for the 1970 model year across the Chevelle and El Camino lineups. It also notes that most experts estimate fewer than 4,000 of those were installed in two-door Chevelle models.
Featured Lot at the Harrisburg Auction
The Chevelle SS LS6 is the featured vehicle in Mecum’s approximately 1,200-car Harrisburg auction.
According to the article, fully documented examples of highly collectible muscle cars have remained strong despite broader softness in the muscle car market, making this Chevrolet Chevelle SS LS6 one of the event’s most closely watched auction offerings.








