Chevrolet Performance’s ZZ6 is one of the most powerful 350-based crate engines in the more than 25-year history of the ‘ZZ’ crate engine lineup.

Innovation in motion
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 GEN-I Small-Block engine ever offered in a production Chevrolet muscle car or Corvette!