the next installment of GM's V8 small-block engine family. The new 7-liter engine produced 505 horsepower at 6,800 rpm and ...

Though overshadowed by the likes of the 426 HEMI, 427 "side oiler", or 454 LS6, these five muscle car V8s were engineering masterpieces ...

Chevrolet produced the rare LS6 V8 engine in the 1970s, with only 4,663 examples made. The LS6 engine was used in Chevelle, El Camino, and Corvette models, offering 450 hp and 500 lb-ft of torque.

A perfectly restored example with a numbers-matching V8, this holy-grail 1970 El Camino SS 454 LS6 could fetch over $250,000.