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Modern Technology Drives this Classic 350 Small-Block!
Developed with contemporary technologies, including a high-rpm
valvetrain, the ZZ6 Turn-Key offers a modern twist on the classic 350
Small-Block — delivering more than 400 horsepower and more than 400 lb.-ft. of
The ZZ6 uses updated Fast Burn cylinder heads with
beehive-style valve springs inspired by the LS engine family — a feature that
enhances high-rpm capability to support more power than any factory-produced
350 engine ever installed in a Chevrolet production vehicle. The unique,
tapered shape of the valve spring allows for the use of a smaller spring
retainer, which reduces the reciprocating mass of the valvetrain, resulting in
better valve dynamics.
Our ZZ6 Turn-Key kit includes the carburetor, distinctive
valve covers and a matching air cleaner, the starter, distributor, alternator,
and additional accessories such as the air conditioning compressor and
front-end accessory drive system.
Part Number: 19351533
Engine Type: Chevy Small-Block
Displacement (cu in): 350
Bore x Stroke (in.): 4.000 x 3.48
Block (P/N 10243870): Cast-iron with 4-bolt mains
Crankshaft (P/N 12670965): Forged steel (shot peened)
Connecting Rods (P/N 10108688): Forged powder metal
Pistons (P/N 10159436): Hypereutectic aluminum
Intake Manifold (P/N 12496822): Single-plane aluminum
Carburetor (P/N 19170093): 770 cfm Holley
Camshaft (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 (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
Recommended Fuel: Premium pump
Distributor (P/N 93440806): HEI
Ignition timing: 36º Total @ 4,000 rpm
Maximum Recommended RPM: 5,800 rpm
Flexplate (P/N 14088765): 12.750"
• Comes with 12.750" externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
• 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 applications
NOTE: Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.
Chevrolet Performance Crate Engines include a 24-month or 50,000-mile/80,000-kilometer limited warranty.
California Proposition 65 Warning