The LS6 engine was used in Chevelle, El Camino, and Corvette models, offering 450 hp and 500 lb-ft of torque. The LS7 engine, a more powerful version of the LS6, was planned but never produced due ...

Rebuilt LS7 Dyno test. 661 hp at 6,600 rpm and pulls to 7,000 rpm 1:25 Mercury Racing / Roadster Shop SB4 7.0 - DOHC 32 Valve engine based on LS7 makes 750 hp at 8,000 rpm!