The LS3 crate engine is an iteration of the V8 that boasts 430 hp and 425 lb-ft of torque. It’s manufactured by General Motors, and is frequently associated with Chevrolet. As of April 2024 ...

While the LSA is the more powerful engine — producing up to 580 horsepower with the ... twice as expensive as the LS3 when it was still available as a crate engine from Chevrolet Performance ...

Gone is our old 383ci small-block and in its place is a Chevrolet Performance LS376/525 all-aluminum, fuel-injected crate engine that is probably underrated at 525 hp and 475 lb-ft of torque.