ZZ6 Crate Engine – Chevrolet Performance ZZ6 Turn-Key Small Block Crate Engine


  • 405 hp @ 5,600 RPM/406 lb.-ft. @ 4,600 RPM
  • Turn-Key Engine Package!
  • Aggressive Hydraulic Roller Camshaft
  • Single-plane Aluminum Intake

Have your engine dyno tested by one of our professional engine builders to ensure everything is properly broken in. We can dyno your engine with your components to make sure everything is working harmoniously before shipping you the whole assembly drained and ready to install.

Shipping is free, but there is a delivery fee for residential addresses.

SKU: 19432105 Categories: , Tag:

ZZ6 Turn-Key Crate Engine

The ZZ6 is the ultimate 350-based turn-key crate engine from Chevrolet Performance!

The ZZ6 is one of the most powerful 350-based crate engines in the more than 25-year history of Chevrolet Performance’s ZZ crate engine lineup. It uses aluminum Fast Burn cylinder heads and LS-style beehive valve springs for higher-RPM performance. Rated at 405 horsepower and 406 lb.-ft. of torque it’s more powerful than any GEN I Small-Block engine ever offered in a production Chevrolet muscle car or Corvette!

What’s Included

Built with a cast-iron block with four-bolt mains, the ZZ6 includes a forged steel crankshaft, aggressive hydraulic roller camshaft, and durable, high-silicon pistons. Motorsports-inspired valve covers and Chevy “Bowtie” insignias on the ends of the cylinder heads let everyone know you’ve got the latest Chevrolet Performance hardware under the hood.

This turn-key engine package includes the distributor, and balancer installed. The carburetor, starter, air conditioning pump, alternator, single belt Front-End Accessory Drive Kit, and more are also included. The ZZ6 engine does not include a fuel pump. Chevrolet Performance offers the ZZ6 350 base engine (P/N 19355668) at a lower price, allowing you to finish the engine yourself.

Important Notes

  • Comes with 12.750″ externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
  • Requires fuel pump and line from fuel pump to carburetor
  • Designed for pre-1976 street vehicles or any off-road vehicle.
  • Some assembly and minor engine tuning required
  • Not intended for marine applications
  • Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.
  • Replaces old P/N 19351533, P/N 19355669, P/N 19418136 and P/N 19419995.
  • Replaces/Supersedes 19418136, 19419995


19418136, 19419995

ZZ6 Turn-Key Tech Specs:

  • Engine Type: Chevy Small-Block
  • P/N: 19432105
  • Power: 405 hp @ 5,600 rpm / 406 lb.-ft. @ 4,600 RPM
  • Displacement (cu in): 350
  • Bore x Stroke (in): 4.000 x 3.48
  • Block: Cast-iron with 4-bolt mains (P/N 10243870)
  • Crankshaft: Forged steel, shot peened (P/N 12670965)
  • Connecting Rods: Forged powder metal (P/N 10108688)
  • Pistons: Hypereutectic aluminum (P/N 10159436)
  • Intake Manifold: Single plane aluminum (P/N 12496822)
  • Carburetor: 770 cfm Holley (P/N 19170093)
  • Camshaft: Steel hydraulic roller (P/N 10185071)
  • Valve Lift (in): .474 intake/.510 exhaust
  • Camshaft Duration (@.050 in): 208° intake / 221° exhaust
  • Cylinder Heads: Fast Burn aluminum; 62cc chambers (P/N 19300955)
  • Valve Size (in): 2.000 intake / 1.550 exhaust
  • Compression Ratio: 9.7:1 nominal
  • Rocker Arms: Aluminum roller style (P/N 19210724)
  • Rocker Arm Ratio: 1.5:1
  • Recommended Fuel: Premium pump
  • Distributor: HEI (P/N 93440806)
  • Ignition timing: 36º Total @ 4,000 RPM
  • Maximum Recommended rpm: 5,800 RPM
  • Balanced: External
  • Flexplate: 12.750″ (P/N 14088765)

Dyno Chart:

Dyno Chart


Click here to download installation information.

Chevrolet Performance Crate Engines carry a 24-month or 50,000-mile warranty (whichever comes first) when installed by a qualified independent service center. Chevrolet Performance Crate Engines also come with a 30-day start-up warranty (parts only).

There are some additional limitations on the warranty – please see the official GM warranty documentation for more information.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

You may also like…

  • Sale!

    Edelbrock 8041 Throttle/Kickdown Bracket 4150 Style Pro-Flo 3 & 4 Throttle Body

    Add to cart
  • Sale!

    GM A/C Delete Bracket/Pulley

    Add to cart