How much horsepower does a 1972 Chevy 350 have?
The horsepower for a 1972 Chevy 350 varied by model and configuration; most common passenger-car 350s produced roughly 165–180 SAE net horsepower, with higher-performance versions delivering more. There isn’t a single figure that covers every application from that year.
Context: how horsepower was rated in 1972
In 1972, GM and other manufacturers used SAE net horsepower ratings, which differ from the earlier gross ratings published in the 1960s. Emissions controls, changes to cam timing, exhaust, and intake tuning reduced output versus earlier years. Because the 350 was offered in a variety of trims and with different carburetors and compression ratios, its exact horsepower for a given car in 1972 depended on the model, equipment, and emission setup. The result is a range rather than a single number.
Common configurations and outputs
The following outlines typical outputs you would see on 1972 Chevrolet 350 V8s based on carburetion and tune. These are approximate SAE net horsepower ratings for standard configurations.
- Baseline 2-barrel 350 V8 used in many passenger cars and light trucks: approximately 165 hp SAE net.
- 4-barrel 350 V8 found in more mid-range Chevys (Malibu, Chevelle, Monte Carlo, etc.): approximately 180–190 hp SAE net.
- High-performance or specialty 350s (in models like sportier Chevelles, Camaros, or Corvette variants): typically higher output, commonly around 200–210+ hp SAE net, depending on the exact model and options.
The numbers above reflect the era’s standard practice of rating horsepower after emission controls were applied and with the engine tuned for the model year. They are not a single “the horsepower” value for every 1972 350 engine.
How to identify the exact horsepower for a specific 1972 Chevy 350
To pinpoint the precise horsepower for a particular 1972 Chevy 350, use the engine code and factory documentation to confirm the exact configuration. The following steps help determine which horsepower rating applies to your build.
- Read the engine code stamped on the engine block (codes like L48, L82, and others indicate different 350 configurations). Cross-reference the code with Chevrolet’s 1972 engine catalogs or dealer documentation to identify the rated horsepower.
- Consult the vehicle’s original window sticker or build sheet (RPO/option codes will point to the specific 350 variant and its horsepower).
- Check the owner’s manual or factory service manual for the official horsepower rating for your model year and trim level.
- Use the VIN and model/year to locate the factory specification sheet or a credible collector-guide reference to confirm the engine’s rating.
If you have access to the car and a dyno, you can measure observed horsepower, but remember that a dyno result reflects current wear, exhaust, and tuning rather than the original factory rating.
Summary
In 1972, the Chevrolet 350 offered a spectrum of outputs depending on configuration and emissions equipment. Most common passenger-car 350s delivered about 165–180 SAE net horsepower, with higher-performance variants producing more. To determine the exact figure for a specific vehicle, identify the engine code, consult original documentation, and cross-reference with the year’s factory specifications.
