The Chevy 454 big block V8 is an iconic powerhouse in American automotive history, and it sat under the hood of some absolute GM classics.

Introduced in 1970, the Chevy 454 -- affectionately known as the Rat Motor -- was the largest displacement Chevrolet engine to enter the big-block engine showdown of the muscle car era.

The 1990s was a heyday for American prosperity and that was also reflected in its pickup trucks, including these.

Famously featured under the hood of the 1970 Chevy Chevelle SS 454, the 454 V8 is a big-block engine that helped define the golden age of muscle cars. Very few engines ever came close to the power ...

The Chevy 454 SS was introduced for the 1990 model year. This ten-mile example will cross the Mecum Auctions block at their ...

GM Performance Parts has just released its latest 2011 catalog which includes all kinds of goodies for the Camaro including a pair of formidable crate engines – a big block LSX 454 that cranks ...

This 35-year-old Chevrolet 454 SS pickup truck has only 11 miles on the odometer and still has the plastic covers on the ...

The first big block Chevy engine was introduced way back in ... with displacements ranging from the venerable 396, 409, 427 and 454 to, finally, the 496-cubic-inch Vortec 8100 that ended the ...

For the Bow Tie, that meant cramming the 454 Big Block in the Chevy Chevelle. The Chevy Chevelle 454 came in two different versions. The LS5 that produced 360 horsepower and 500 pound-feet of ...

This 1970 Chevrolet Corvette ... of Chevrolet's small- and big-block V8 engines. 1970 brought new design tweaks inside and out, but the big news was the 454-cubic-inch (7.4-liter) V8.