ZZ5 350 Base GM Crate Engine

Brand: Chevrolet Performance

Part Number: 19301293


The product's part number has been changed or discontinued. Please see the details below.

Please Log in to receive
your Private and Specific
Click Here



FREE Shipping!

ZZ5 350 Base Crate Engine

400 hp @ 5,600 rpm / 400 lb.-ft. @ 3,500 rpm


A New 'ZZ' Legend

Building on the strength and power of the legendary ZZ4 Small-Block, our engineers upped the ante with a revised cylinder head design, new valvetrain components and more to create the all-new ZZ5 – a 400-horsepower 350 with loads of low-end torque. In fact, the new ZZ5 produces at least 300 lb.-ft. of torque by only 1,500 rpm, for a thrilling feeling of immediate performance.

We start the assembly with a new block featuring strong four-bolt main caps, along with a forged steel crankshaft and durable high-silicon aluminum pistons. We also use lightweight aluminum cylinder head castings based on the proven Fast Burn design, but with LS-style “beehive” valve springs that enable greater high-rpm performance and durability.

The ZZ5 350 Base crate engine kit includes the intake manifold, distributor, water pump, damper and flexplate. A four-barrel carburetor and additional components are required to finish the assembly – all available from Chevrolet Performance.


ZZ5 350 Base Tech Specs:
Part Number: 19301293
Engine Type: Chevy Small-Block V-8
Displacement (cu in): 350
Bore x Stroke (in): 4.000 x 3.480
Block (P/N 10105123): Cast-iron with 4-bolt main caps
Crankshaft (P/N 12556307): Forged steel
Connecting Rods (P/N 10108688): Powdered metal
Pistons (P/N 10159436): Hypereutectic aluminum
Camshaft Type (P/N 10185071): Hydraulic roller
Camshaft 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 (in): 2.000 intake / 1.550 exhaust
Compression Ratio: 9.72:1 nominal
Rocker Arms (P/N 10089648): Stamped steel
Rocker Arm Ratio: 1.5:1
Recommended Fuel: 92 octane
Ignition Timing: Base 10° BTDC, 32° Total
Maximum Recommended rpm: 5800
Balanced: External


Installation Notes:
• Comes with 12.750" externally balanced 153-tooth automatic transmission flexplate. Change to externally balanced flywheel for normal transmission applications.
• 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
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine application

Note: Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.