Explore Chevy's Turbo-Thrust big-block V-8 legacy, from the 348 to the rare 427 Z11, powering classics like the Impala with ...
While these small-block crate engines can't match the power output of Chevy's most powerful big block ... crate engine is the 376-cubic-inch LT4 E-ROD with 640 horsepower and 630 lb-ft of torque.