Chevrolet Performance Parts 19432104 ZZ6 350 Base Crate Engine

Chevrolet Performance's ZZ6 Base combines aluminum Fast Burn cylinder heads with LS-style beehive valve springs on a 350 small-block, with peak numbers of 405 hp and 406 lb-ft backing it up. Underneath, four-bolt main caps clamp a cast-iron block, a forged crankshaft turns an aggressive hydraulic roller cam, and durable high-silicon pistons do the compressing.

What sets this package apart visually

Motorsports-inspired valve covers mark this engine at a glance, with Chevy "Bowtie" badging cast into the ends of the cylinder heads. As a Base package, the major induction and accessory-drive pieces are bolted on rather than left loose in the crate: that means the distributor, balancer, flexplate, and both the water pump and intake manifold ship already in place.

What you still need to add

This package does not extend to the air cleaner, the ignition wiring, or the accessory drive, so budget for those separately along with a carburetor or fuel-injection setup to suit your build. Since the block follows the long-running small-block bolt pattern, most standard Chevy mounts and brackets are a reasonable starting point, but confirm fitment against your own chassis before ordering, and keep in mind the compact beehive-spring heads can change clearance around some aftermarket brackets.

Q: Is the water pump already mounted on this engine? Yes, it ships installed as part of this Base package, alongside the balancer and flexplate.

Q: What is left out that a Turn-Key version would include? This Base package skips the air cleaner, ignition wires, and accessory drive, so plan on sourcing those along with your induction system.