Chevrolet Performance Part 19432105 ZZ6 350 Turn-Key

Chevrolet Performance Part 19432105 ZZ6 350 Turn-Key Crate Engine

Chevrolet Performance’s ZZ6 is one of the most powerful 350-based crate engines in the more than 25-year history of the ‘ZZ‘ crate engine lineup.

Innovation in motion
Aluminum Fast Burn cylinder heads
Equipped with LS-style beehive valve springs for greater high-rpm performance.
It’s rated at 405 horsepower and 406 lb.-ft. of torque – more than any GEN-I Small-Block engine ever offered in a production Chevrolet muscle car or Corvette!

Chevrolet Performance Part 19432105 represents the ZZ6 350 Turn-Key Crate Engine, one of the most powerful and advanced 350-cubic-inch Gen-I small-block engines ever produced directly by General Motors. This Turn-Key version comes as a complete, ready-to-install (ready-to-start) package, eliminating the need to source additional components separately.

Here are the key specifications, key features, and package features offered by this legendary engine:

Main Performance Specifications

Maximum Power: 405 Horsepower (HP) @ 5,600 RPM

Maximum Torque: 406 lb.-ft. @ 4,600 RPM

Engine Capacity: 350 cubic inches (5.7 liters)

Compression Ratio: 9.72:1 nominal

Recommended Fuel: Premium Gasoline (High Octane / Premium Pump Fuel)

Maximum RPM Limit: 5,800 RPM

Internal Construction & Engine Block:

Durable cast iron with 4-bolt main caps for maximum structural strength.

Crankshaft: Made of high-strength 1053 forged steel.

Connecting Rods: Made of shot-peened forged powder metal.

Piston: Lightweight and heat-resistant hypereutectic aluminum.

Camshaft: Made of aggressive steel hydraulic rollers to maximize airflow at high rpm without sacrificing low-speed drivability.

Modern Technology Features Chevrolet Performance Part 19432105 ZZ6 350 Turn-Key

Fast Burn Cylinder Heads: Utilizes Fast Burn-designed aluminum cylinder heads with oversized valves (2.000″ intake / 1.550″ exhaust) to optimize airflow.

Beehive Valve Springs: Conical valve springs (beehive) adopted from LS engine technology. This design reduces reciprocating mass, maintains better valve control, and increases efficiency at high engine speeds.

Rocker Arms: Equipped with roller-style aluminum rocker arms with a 1.5:1 ratio to minimize valvetrain friction.

Turn-Key Package (Ready to Use)

Unlike the Base or Long Block versions, this Turn-Key package with part code 19432105 includes factory-installed external components, such as:

Holley carburetor (770 CFM)

HEI ignition system, distributor with spark plug wires

Mechanical fuel pump and water pump

Alternator and AC compressor

Front-end accessory drive kit (serpentine belt system)

Starter motor

Chevrolet Performance racing-style air cleaner and valve covers

12.75-inch automatic transmission flexplate (Note: Requires a separate external flywheel if you want to pair it with a manual transmission).