ZZ4 350 Turn-Key Chevrolet Performance Crate Engine
Affordable high-performance with everything you need to get running!
The ZZ4 350 crate engine is Chevrolet Performance’s original affordable crate engine. In Turn-Key form, it comes with everything you need to get it running in your project vehicle.
High-flow aluminum heads are the keys to the ZZ4’s robust 355 hp and 405 lb.-ft. of torque. They boast 163cc intake runners, raised exhaust ports and tight, 58cc combustion chambers that enhance compression and power. The heads feature 1.94/1.50-inch valves for efficient performance.
The rest of the ZZ4 350 is comprised of premium materials, including a brand-new, four-bolt block, forged steel crankshaft, high-silicon pistons and a hydraulic roller camshaft. It also includes an aluminum intake, Holley four-barrel carburetor and HEI distributor, as well as a starter, water pump, fuel pump and front-end accessory drive kit – including an air conditioning compressor, alternator and more!
If you want to finish off the engine yourself, try the ZZ4 350 Base engine (P/N 24502609) at a lower price. It includes only the intake manifold, distributor, water pump, damper and flexplate.
Note: Distributor with melonized steel gear MUST be used with long blocks and partial engines with steel camshafts, or engine damage will occur.
ZZ4 350 Tech Specs:
Engine type: Chevy small-block V8
Displacement (cu in): 350
Bore x stroke (in): 4.00 x 3.48br> Block (P/N 10105123): Cast iron with 4-bolt main caps
Crankshaft (P/N 12556307): Forged steel
Connecting rods (P/N 10108688): Powdered metal steel
Pistons (P/N 10159436): High-silicone aluminum with offset pins
Camshaft type (P/N 10185071): Steel hydraulic roller
Camshaft lift (in): .474 intake/.510 exhaust
Camshaft duration (@ .050 in): 208° intake/221° exhaust
Cylinder heads (P/N 12556463): Aluminum; 58cc chambers
Valve size (in): 1.94 intake/1.50 exhaust
Compression ratio: 10:1
Rocker arms (P/N 10089648): Stamped steel
Rock arm ratio: 1.5:1
Recommended fuel: 92 octane
Maximum recommended rpm: 5800
• Comes with 12.75-inch externally balanced 153-tooth automatic transmission flexplate. Change to externally balanced flywheel for manual transmission applications.
• Requires fuel line from fuel pump to carburetor
• Fuel pump pressure is pre-set; fuel pressure regulator not required
• Some assembly and minor engine tuning required
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications