General Motors' 10 Most Reliable Engines Ever Built, Ranked
By JOE HINDY
396ci L78 TurboJet
Despite only being in a few Chevy models, such as the Sting Ray Corvette and Impala, the 396 cubic inch L78 TurboJet engine earned a reputation for reliability.
The 5.3-liter V8 Vortec 5300 primarily powered the Chevy Silverado for many years. The 325 cubic-inch engine was considered reliable for most of its generations.
The engine was also used in other models like the Chevy Tahoe and GMC Yukon. Many owners have reported a trouble-free life with the engine, but it did have occasional issues.
Like the other LS engines, the LS9 is known for its durability and reliability. It's a 6.2-liter small-block engine initially built for the Chevy C7 Corvette ZR1.
Being handmade in the same plant as GM's racing motors likely meant there were no cut corners in production. The engine was rated for 638 horsepower and 604 lb-ft of torque.
The LT1 was among the first new-generation American muscle car engines, and one of the things it's known for is its reliability as one of the great engines from the 1990s.