1970 Chevrolet Corvette

1970 Chevrolet Corvette Stingray LS5 454 — Numbers-Correct Big Block with NCRS Documentation


Why This Car Is Special

The 1970 Chevrolet Corvette Stingray is widely regarded as the high-water mark of the C3 generation, and for good reason. It was the last model year before emissions regulations and insurance pressures began pulling horsepower ratings down across the industry. Nineteen-seventy also happened to be a shortened production year — the Bowling Green assembly line ran behind schedule, and total Corvette output for the model year came in at just 17,316 units, making 1970 one of the lowest-production Corvette years of the entire C3 run.

Within that already-limited pool, the LS5 454 was a significant option. Chevrolet offered two big block choices in 1970: the LS5 at 390 horsepower and the top-shelf LS7 at a factory-rated 460 horsepower. The LS7 was listed in early literature but was never actually put into production for street cars that year, which means the LS5 was effectively the most powerful engine a buyer could order in a 1970 Corvette. Only 4,473 buyers checked that box. This is one of them.

The VIN on this car decodes to a 1970 Corvette coupe built at the St. Louis assembly plant, with the 'S' engine code confirming the factory LS5 454 installation. The exterior color is documented under paint code 974 — Monza Red — and the interior carries trim code 407, confirming the factory red leather bucket seat interior. Both codes match what you see on the car today, which matters considerably to NCRS judges and serious collectors alike. This car is an active NCRS member vehicle, which means it has been submitted to the scrutiny of the National Corvette Restorers Society — an organization whose judging standards are among the most demanding in the hobby.

The odometer reads just over 78,000 miles.


Features List

- 454 cubic inch / 390 horsepower LS5 Big Block V8, 4-barrel carburetor
- 4-speed manual transmission
- Positraction limited-slip rear end
- 4-wheel disc brakes
- Power brakes
- Power steering
- Factory air conditioning
- Removable T-Tops
- Tilt-telescopic steering column
- AM/FM radio
- Edelbrock chrome valve covers and air cleaner
- MSD ignition
- Chrome side exhaust
- Chrome luggage rack
- Correct paint code 974 (Monza Red) exterior
- Correct trim code 407 red leather interior
- Wood-grain door panel trim inserts
- NCRS member car


Mechanical

The heart of this 1970 Chevrolet Corvette Stingray is the LS5 454 cubic inch big block, factory-rated at 390 horsepower and 500 lb-ft of torque at a 10.25:1 compression ratio — figures confirmed by the engine data plate visible on the center console. The LS5 used rectangular-port cylinder heads, a hydraulic camshaft, and a single Rochester Quadrajet four-barrel carburetor. It was a torque-heavy, street-friendly package that could be driven daily while still delivering serious performance. The 500 lb-ft torque figure is what makes these cars feel so different from small block Corvettes of the same era — the power comes in low and stays flat across a wide rpm range.

Behind the engine sits a 4-speed manual transmission, the correct and desirable gearbox pairing for a car of this specification. The Positraction rear end ensures both rear wheels put power to the ground consistently, which is especially relevant given the torque output of the 454.

Stopping power comes from 4-wheel disc brakes — a feature that set the Corvette apart from nearly every other American production car of its time. The factory equipped these with power assist, and the combination of disc brakes at all four corners with a big block engine was a genuinely capable performance package by the standards of 1970.

Under the hood, Edelbrock chrome valve covers and a matching chrome Edelbrock air cleaner have been fitted, giving the engine bay a clean, finished appearance without straying into outlandish territory. An MSD ignition system has also been installed, which improves spark c