How much horsepower does a 572 Chevy engine have?

The horsepower of a 572 Chevy engine varies by the exact model and build, but the most common factory options sit in the 620–720 horsepower range. In short, a typical 572 crate engine delivers about 620 hp, with higher-output variants around 720 hp; aftermarket or boosted builds can surpass that significantly.

What defines horsepower in a 572-engine build

Horsepower for any 572 Chevy is determined by a combination of displacement, compression, cam profile, cylinder heads, intake and exhaust hardware, fuel delivery, and whether the engine is naturally aspirated or boosted. The 572 cubic inch size is used across multiple configurations, from streetable crate motors to race-oriented builds, so published numbers can vary by setup.

Chevrolet Performance crate engines

Chevrolet Performance currently markets two main 572-based crate engines with published horsepower figures. The following options are commonly cited by the manufacturer and aftermarket partners:

• ZZ572/620: 620 horsepower at about 5,600 rpm; torque around 650 lb-ft at roughly 4,000–4,400 rpm.


• ZZ572/720R: 720 horsepower at about 6,000 rpm; torque around 700 lb-ft at roughly 5,000 rpm.

These numbers reflect the typical dyno results for each crate engine and may vary slightly with revisions, fuel, and exhaust configuration. Always consult the latest product sheet for exact figures.

Concisely, these crate engines provide a reliable baseline for high-performance street cars, with the 620 hp option offering strong torque and broad drivability, and the 720 hp variant delivering higher-rev performance and more aggressive acceleration.

Other 572 options and aftermarket variants

Beyond Chevrolet’s two primary crate offerings, builders and enthusiasts pursue a range of other 572 configurations. These can include higher-output NA builds, as well as engines boosted with forced induction for drag or track use. The horsepower in these setups can vary widely, limited mainly by internal engine strength, fuel system capability, and the chosen boost strategy.

• High-output 572 builds used for racing or extreme performance applications, frequently exceeding 700 hp and potentially approaching 1,000 hp with boost or advanced fueling and cooling solutions.


• Natural-aspirated versus forced-induction paths: NA builds typically sit in a broad band (roughly 600–760+ hp depending on components), while turbocharged or supercharged configurations can push well beyond 1,000 hp with proper tuning and supporting hardware.

In practice, the final horsepower figure for a 572 engine depends on the entire build package: compression ratio, cylinder-head flow, cam timing, fuel delivery, ignition, and whether a blower/turbo is employed. The crate engines provide solid baselines, and enthusiasts often tailor the setup to their specific goals.

What buyers should know

When selecting a 572-based setup, consider intended use (street, show, or track), transmission and drivetrain compatibility, weight and gearing, and budget for piping, fuel, ignition, and cooling. A 620-horsepower crate engine is a strong, versatile option for daily-driven hot rods, while a 720-horsepower variant suits more aggressive performance goals. For boosted builds, plan for adequate intercooling, fuel staging, and engine cooling to maintain reliability.

Always verify current specifications from Chevrolet Performance or your chosen engine builder, as revised revisions and emissions considerations can alter published horsepower numbers over time.

Summary

Most 572 Chevy engines fall into a core range of about 620 hp (ZZ572/620) to about 720 hp (ZZ572/720R) in Chevrolet Performance’s crate lineup. With aftermarket tuning, higher-performance parts, or forced induction, horsepower can climb well beyond those figures. The exact number depends on the specific model and build choices, so always check the latest official specifications for your chosen configuration.

How much HP does a 632 Big Block have?

A 632 big block engine can produce from approximately 840 horsepower for a streetable pump gas version to over 1,300 horsepower in a dedicated drag race setup, with a popular naturally aspirated race version from Chevrolet making 1,004 horsepower. The horsepower output varies significantly depending on the specific build, intended use (street vs. race), and the use of forced induction like superchargers or nitrous oxide. 
You can watch this video to see a Chevrolet 632 crate engine being fired up: 50sEngine BuilderYouTube · May 2, 2025

• Chevrolet ZZ632/1000: Produces 1,004 horsepower and is Chevrolet's largest and most potent engine to date. 
• Smeding Performance BMF: An 840 horsepower, naturally aspirated, street-friendly version that runs on pump gas. 
• BluePrint Engines Pro Series: Available in a carbureted version making 1,015 horsepower or a fuel-injected version at 1,000 horsepower. 
• Dedicated Drag Race Engines: Custom builds can reach higher horsepower numbers. For example, one engine produces 1,300 horsepower, while another with a two-stage nitrous setup can make close to 2,000 horsepower. 

This video shows the power of a 632 cubic inch big block engine on a dyno: 59sThe Horsepower MonsterYouTube · Oct 18, 2025

What makes a 572 big block engine special?

It features a big-bore 4.5" block and a 4.5" stroke, along with massive aluminum cylinder heads designed to flow huge amounts of air. Rated around 655 horsepower and 710 lb-ft of torque, the Boss 572 is a naturally aspirated powerhouse. It uses a solid roller camshaft, forged internals, and a 10.0:1 compression ratio.

What is the difference between a 572 and 632?

The ZZ632's iron block shares a mold with Chevrolet Performance's ZZ572 crate engines, but the castings are machined to accommodate the massive 632-cubic-inch displacement. The bore grows by 0.040 inch compared to the 572-cubic-inch V-8s, with most of the displacement gain coming from a stroke that's 0.375 inch longer.

How much HP does a 572 Big Block make?

between 620 to 750 horsepower
The horsepower output of a 572 Big Block crate motor can vary depending on the specific configuration and modifications made to the engine by the manufacturer offering it. However, generally speaking, a 572 Big Block crate engine can produce between 620 to 750 horsepower and 645 to 710 lb-ft of torque.