Chevrolet ZZ454 crate engine nitrous combination dyno test using Nitrous Oxide Systems Crosshair Pro Plate system.

For us, going big meant selecting a ZZ454 crate engine. Being a big-block, the combination was already sporting sufficient cubic inches, but the ZZ454 offered more than just displacement.

Maybe, but we tried a more scientific approach and tested a pair of exhaust systems to quantify the difference on our Every Trick in the Book GM Performance Parts ZZ454 crate engine.

The good news is that you won't have to worry much about the powertrain, which now consists of a ZZ454 GM Performance crate engine mixed with a five-speed manual transmission from Tremec.

When we last visited our Chevrolet Performance ZZ454 crate engine (PN 19331574) on the dyno, we found a lot to like. Rated at 469 horsepower and 519 lb-ft of to ...