It uses aluminum Fast Burn cylinder heads equipped with LS-style beehive valve springs for greater high-rpm performance. It’s rated at 405 horsepower and 406 lb.-ft. of torque – more than any Small-Block engine ever offered in a production Chevrolet muscle car or Corvette!
The ZZ6 is built with a cast-iron block with four-bolt mains
Forged steel crankshaft
Aggressive hydraulic roller camshaft and durable, high-silicon pistons.
Motorsports-inspired valve covers distinguish this new crate engine at a glance, too – along with Chevy “Bowtie” insignias in the ends of the cylinder heads
This base crate engine package includes the intake manifold, distributor, water pump, balancer, and flexplate installed. Air cleaner assembly, ignition wires, and accessory drive not included.
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