ZZ6 350/405 Base 19355668

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  • Chevrolet Performance ZZ6 350/405 HP Base 193556

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Item #: 19355668
Reg. Price: $7,278.70
Our Price: $5,922.96


19355668 Chevrolet Performance ZZ6 350/405 Base

Chevrolet Performance’s new ZZ6 delivers more power than any 350 Small-Block ever installed in a production vehicle

Rated at 405 hp and 406 lb.-ft. of torque, it derives its range-topping performance from unique, lightweight 

aluminum cylinder heads that enable optimal airflow at high rpm.

 The cylinder head casting is based on the proven Fast Burn design, with large intake runners and 2.00/1.55-inch

 valves. Beehive-style valve springs deliver greater high-rpm performance and durability. Their egg-shaped profiles have

 less reciprocating mass in motion, require less spring pressure for greater valve control and handle valvetrain stresses

 more efficiently. They allow the ZZ6 to rev higher to make the most of every cubic inch of air drawn through it.

 The ZZ6 also uses an aggressive hydraulic roller camshaft that supports the engine’s high-rpm airflow capability

 while maintaining excellent low-speed drivability. This Base crate engine kit includes the intake manifold, distributor,

 water pump, damper and flexplate – and the distinctive, racing-inspired valve covers that distinguish this crate

 engine as the latest in the ZZ legacy!

 ZZ6 350/405 Engine Specs

Advertised Horsepower – 405 hp @ 5,600rpm
Advertised Torque – 405 lb-ft @ 4,600rpm

Part number #19351532 – Base
Engine Type – Chevy Small-Block

Bore x Stroke – 4.000” x 3.48”
Block (p/n 10105123) – Cast Iron with 4-bolt Mains
Crankshaft – (p/n 12556307) – Forged Steel
Connecting Rods (p/n 10108688) – Forged Powder Metal
Pistons (p/n 10159436) – Hypereutectic Aluminum
Intake Manifold (p/n 12496822) – Single-Plane Aluminum (not included on base model)
Carburetor (p/n 19170093) – 770 cfm Holley (not included on base model)
Camshaft (p/n 10185071) – Steel Hydraulic Roller
Valve Lift (in) - .474 intake/.510 exhaust
Camshaft Duration (@.050 in) – 208 degrees intake/221 degrees exhaust
Cylinder Heads (p/n 19300955) – Fast Burn Aluminum – 62cc chambers
Valve Size (inches) – 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
Distributor (p/n 93440806) - HEI (not included on base model)
Ignition timing – 36 degrees total @ 4,000rpm
Maximum Recommended RPM – 5,800rpm
Balance - External
Recommended Fuel – 93 octane premium pump


• Requires four-barrel carburetor, spark plug wires and additional components to complete assembly
• Comes with 12.750" externally balanced 153-tooth automatic transmission flexplate. Change to externally balanced flywheel for manual transmission applications.
• Requires fuel 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 application

NOTE: Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.

 ZZ6 Dyno graph
Click here to download Product Information Sheet




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