ZZ6 New Member from Chevrolet Performance to the Iconic 350-Based “ZZ” Engine Family

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!

Specifications:

Power: 405 HP @ 5600 RPM, 406 ft. lbs. of torque @ 4600 RPM
Displacement: 350 CID, 5.7L
Bore x Stroke: 4.00” x 3.48”
Compression Ratio: 9.72:1
Recommended Fuel: 92 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps
Crankshaft: Forged Steel
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .474” Intake / .510” exhaust
Cam Duration @ .050”: 208 deg. Intake / 221 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: Dual Bolt Pattern Fast Burn Aluminum, 3/8” screw-in rocker studs
Combustion Chamber: 62cc
Valves: .200” Intake/ 1.55” Exhaust
Rocker Arms: Aluminum Roller, 1.5:1 Ratio
Valve Springs: LS Beehive 12625033
Balance: External
Maximum GM Recommended RPM: 5800
GM Recommended Torque Converter 3000-3400 Stall
Ignition Timing: Base 10 degrees BTDC, 36 degrees total @ 4000 RPM

Engine Includes:

GM Licensed Black Aluminum Valve Covers
Aluminum Performance Intake
HEI Distributor and Spark Plugs
12-3/4” Auto Trans Flexplate
8” Harmonic Balancer
Cast Iron Long Water Pump
Oil Filter and Adapter
Passenger Side RH Oil Dipstick and Tube

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Small Block Chevy 350 405HP Base Crate Engine 19351532

Product Information

  • $5,922.96


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