Product Summary

350, Turn-Key Crate Engine Crate Engine Type

    Key Specs

    MFG. Part #19368150
    BrandChevrolet Performance Parts
    Crate Engine TypeTurn-Key Crate Engine
    Engine Displacement350 cu. in.

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    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!

    • Fully GM assembled long block
    • Black Aluminum Valve Covers
    • Black Aluminum Air Cleaner
    • Oil pump, pick-up and oil pan
    • Aluminum Performance Dual Plane Intake
    • Chevrolet Performance EFI system
    • Distributor and Spark Plugs
    • 12-3/4” Auto Trans Flexplate
    • 8” Harmonic Balancer
    • Front timing cover
    • Cast Iron Long Water Pump
    • Chevrolet Performance Serpentine Drive (FEAD) package with A/C
    • Oil Filter and Adapter
    • Passenger Side RH Oil Dipstick and Tube


    • Power: 420 HP at 5800 RPM, 408 ft. lbs. of torque at 4500 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 at .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, 34 degrees total at 4000 RPM


    CARB Warning

    Follow EPA, CARB, and state regulations for engine changes

    Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine


    MFG. Part #19368150
    BrandChevrolet Performance Parts
    Crate Engine TypeTurn-Key Crate Engine
    Engine Displacement350 cu. in.
    Horsepower420 horsepower
    Compression Ratio9.72:1
    Torque408 ft./lbs.
    Maximum RPM5800
    Camshaft TypeHydraulic Roller
    Cylinder Head MaterialAluminum
    Piston MaterialHypereutectic Aluminum
    Crankshaft MaterialForged Steel
    Combustion Chamber Volume62cc
    Camshaft Duration (.050 in)208° intake / 221° exhaust
    Camshaft Lift (in).474 intake / .510 exhaust
    Bore x Stroke (in)4.000" x 3.480"
    Intake Manifold IncludedYes
    Distributor IncludedNo
    Connecting Rod MaterialPowdered Metal
    Valve Covers IncludedYes
    Engine BalanceExternal
    Cylinder Heads IncludedYes
    Rear Main Seal Style1-piece
    Oil Pan IncludedYes
    Timing Cover IncludedYes
    Water Pump IncludedYes
    Harmonic Balancer IncludedYes
    Flexplate IncludedYes
    Air Cleaner IncludedYes
    Spark Plugs IncludedYes
    Spark Plug Wires IncludedYes
    Cylinder Head StyleAssembled
    Intake Valves IncludedYes
    Exhaust Valves IncludedYes
    Valve Spring IncludedYes
    BlockCast Iron, 4 bolt main
    NotesIncludes Chevy Performance EFI system.
    Sold in QuantityEach