The 4.3L V6 motor was the first to be called a Vortec engine. At this time, Chevy was developing its vortex technology, a proprietary method of mixing air and fuel in the combustion chamber.

However, despite the recent popularity of the V6, the inline-6 could ... tested a twin-turbocharged 4200 Vortec with 400 ...

The cylinder deactivation feature will see first use in the 3.9L V6 engines used in the 2007 Chevy Impala, whereas the 3.9L V6 with E85 capability will only be available in the Chevy Uplander ...

Engine, Vortec 4.3L V6 MFI (195 hp [145.4 kW] @ 4600 rpm, 260 lb-ft of torque [351.0 N-m] @ 2800 rpm) (Required and standard on C*15703, C*15903, and CC15753 Models only. Not available with (VYU ...