Chevrolet Performance tunes 7.0-liter LS427/570 crate motor to 570 hp
Chevrolet Performance tunes 7.0-liter LS427/570 crate motor to 570 hp GM’s 7.0-liter LS7 V8 might best be known in production form as the supercharged heart of the C6 Corvette Z06, but the naturally aspirated base unit has been a…