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Lot 94
1970 Chevrolet Chevelle SS LS6

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CHASSIS NO: 136370B142374

• Numbers matching 454 cubic-inch 450 horsepower V-8
• M22 “Rock Crusher” four-speed with 4:10 ratio 12-bolt rear end
• Believed to have less than 29,900 miles from new
• Full and correct concours restoration with factory markings
• Original factory build sheet, listed in the LS6 registry
• Jerry MacNeish certified in 2019


Addendum: Please note, noted expert Jerry MacNeish certified this car in 2019 as a factory LS6.


454 cid V-8 engine rated at 450 HP, four-speed manual M22 “Rock Crusher” transmission, Independent A-arm coil spring front and semi-floating coil spring rear suspension, power front-wheel disc and rear drum brakes; wheelbase: 112"


There were many fast cars produced in the muscle car era, but the absolute zenith was reached in 1970 when Chevrolet produced the Chevelle SS with the RPO Z15 package that featured the LS6 engine option. What one got when they checked the RPO Z15 option was a well-equipped Chevelle but upgrading to the mighty LS6 engine added another $263.30 to the bottom line. At the heart of the LS6 was a monster 454 cubic-inch V-8 with 450 horsepower. A Chevelle SS equipped a LS6 was the King of the Friday night street fights as nothing else came close. Not only was the LS6 built for power, but it was also built with almost bullet-proof durability. An aluminum intake manifold served as the foundation for a massive Holley 800-cfm four-barrel carburetor. A forged steel crankshaft was held in place with four-bolt mains and the LS6 came with an impressive 11.25:1 compression ratio. The fastest LS6 ¼-mile time recorded by an auto magazine (in period) was in the November 1969 issue of Car Craft magazine. Car Craft rocketed the bone stock 1970 Chevelle SS LS6 through the ¼-mile in 13.12 seconds at 107.01 mph. The 1970 Chevelle SS LS6 also had excellent handling capabilities thanks to its F41 suspension, which not only included heavy duty suspension components, but also 14×7-inch wheels and F70x14 tires.

Finished stunningly in Chevrolet’s Forest Green, it had just 29,878 believed actual miles from new and retained its numbers matching engine prior to its ensuing restoration. Most important is the presence of the original factory build sheet that clearly displays the LS6 option and the work performed was done so with this as a guide. The sheet metal is excellent, and the engine compartment has been restored to show level, right down to correct hose clamps with factory correct hoses.

Factory colors are authentically finished and this Chevelle was restored with all factory markings faithfully applied in all the right places. Power reaches the rear wheels through the most coveted manual M22 “Rock Crusher” transmission and the rear axle is equipped with 4:10 gears. This Chevelle rides on Firestone Wide Oval tires that are mounted on correct Chevrolet Rally rims. The pristine black interior features factory AM/FM radio 8-track tape player and a bench seat with the rare Hurst shifter made specifically for bench seat cars equipped with a four-speed. In addition to the aforementioned factory original build sheet, the car comes with its NCRS Shipping Data Report and also its certificate of registration in the LS6 registry.

This Chevelle SS 454 with the highly desirable LS6 option represents the absolute pinnacle of classic American muscle. Built for speed and brute horsepower, it proved to be the dominating car both on the street and the track. Never before had anything so powerful come from Detroit and today it remains a legend. Fully documented and complete with original numbers matching engine, four-speed transmission and 4:10 rear end, it possesses the ultimate drivetrain, is in superb condition, and represents an excellent opportunity to acquire one of the most powerful muscle cars ever built in the era.

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