Although Vortec engines fall under the "LS" branding, they aren't actually the exact same as more traditional LS engines made by General Motors.

Not every LS engine swapper will require a heater core or heater hoses. Hot street cars, drag racers, and weight conscious road racers often delete the car’s heater assembly, which then requires ...

LS1 engine design highlights and basic specs, why it’s such a popular swap, and a basic timeline, from the C5 Corvette to its use in the Australian HSV heroes. The General Motors 5.7 LS1 engine was a ...