ZZ6 EFI Turn-Key 420HP

Chevrolet Performance SKU: 19433044
Sale price


Regular price $16,592.36


The ZZ6 EFI Turn-Key crate engine offers modern performance balanced with traditional style that looks period perfect in your vintage Chevy!

Chevrolet Performance engineers adapted a unique, electronically controlled port fuel injection system to the ZZ6 350, using an aluminum intake manifold that has the appearance of a carbureted intake. A fuel injection throttle body mounted in place of the carburetor allows a traditional air cleaner to be installed on the engine.

The ZZ6 also features cylinder heads based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch valves, along with beehive-style valve springs enable greater high-rpm performance and durability. It also uses an aggressive hydraulic roller camshaft that supports the engine’s high-rpm airflow capability while maintaining excellent low-speed drivability.

A simple plug-and-play control system rounds out the package to get the engine running in your project without the need for third-party tuning.

Our Turn-Key crate engine kit includes the distributor and damper installed, with the throttle body, starter, air conditioning pump, alternator, single-belt Front-End Accessory Drive Kit and more also included. Chevrolet Performance also offers the ZZ6 EFI Deluxe kit, which includes the installed distributor and damper (P/N 19368149).

Part Number: 19368150
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 350
Bore x Stroke (in): 4.000 x 3.480
Block (P/N 10243870): Cast iron with 4-bolt main caps
Crankshaft (P/N 12670965): Forged steel, shot peened
Connecting Rods (P/N 10108688): Forged powdered metal
Pistons (P/N 10159436): Hypereutectic aluminum
Camshaft Type (P/N 10185071): Steel hydraulic roller
Valve Lift (in): .474 intake / .510 exhaust
Camshaft Duration (@.050 in): 208° intake / 221° exhaust
Cylinder Heads (P/N 19300955): Fast Burn aluminum; 62cc chambers
Valve Size (in): 2.000 intake / 1.550 exhaust
Compression ratio: 9.72:1 nominal
Rocker Arms (P/N 19210724): Aluminum; roller-style
Rocker Arm Ratio: 1.5:1
Recommended Fuel: Premium pump
Ignition Timing: 36° total @ 4,000 rpm
Maximum Recommended RPM: 5,800
Balanced: External
Flexplate (P/N 14088765): 12.750"


• Crate engine kit includes pre-programmed, self-learning control system
• Comes with 12.750" externally balanced, 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission
• Not intended for marine applications

WarningCalifornia Proposition 65 Warning