Chevrolet Performance 350 C.I. ZZ6 Base Crate Engine 405HP

The ZZ6 crate engine (19433041) features a cylinder head casing with a fast burn design, large intake runners, and beehive-style valve springs. It's rated at 405 horsepower with 406 ft-lbs. of torque using lightweight aluminum cylinder heads that heighten RPMs. It also features a hydraulic roller camshaft.

Features and Benefits:
- Engine Type: Chevy Small-Block V8
- Displacement (cu in): 350
- Bore x Stroke (in): 4.000 x 3.480
- Block: Cast-iron with 4-bolt main caps
- Crankshaft: Forged steel - shot peened
- Connecting Rods: Forged powdered metal
- Pistons: Hypereutectic aluminum
- Intake Manifold: Single-plane aluminum
- Camshaft Type: Steel hydraulic roller
- Camshaft Lift (in): .474 intake / .510 exhaust
- Camshaft Duration (@.050 in): 208 degrees intake / 221 degrees exhaust
- Cylinder Heads: Fast Burn aluminum; 62cc chambers
- Valve Size (in): 2.000 intake / 1.550 exhaust
- Compression Ratio: 9.72:1
- Rocker Arms: Aluminum roller style
- Rocker Arm Ratio: 1.5:1
- Recommended Fuel: Premium pump
- Distributor: HEI
- Ignition Timing: 36 degrees Total at 4,000 rpm
- Maximum Recommended rpm: 5800
- Balanced: External
- Flexplate: 12.750

Additional Notes:
- Requires four-barrel carburetor, spark plug wires and additional components to complete assembly
- 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
- Some assembly and minor engine tuning required
- Not intended for marine applications
- Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.

*Only for use on pre-pollution controlled vehicles: Designed for pre-1976 street vehicles or any off-road vehicle.