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.

Unfortunately, those 24 laps totaled another engine, and Freiburger and Finnegan have finally decided to look into the seized 4.3L Vortec V6. Unsurprisingly, the split-pin crankshaft journal ...

The 4.3L Vortec V6 was Chevy’s iron-willed middle child. This engine was a workhorse tucked under the hoods of half-ton trucks, vans, and SUVs for over two decades.

The all-new 4.3 liter EcoTec3 V6 will be the base powerplant in the 2014 Chevy Silverado and Sierra. How does it compare to the base engines of the Ford F-150 and Ram 1500?

Powered by the new, electronically fuel-injected, 4.3L Vortec V6, the S-15 packs a potent 160-horsepower wallop thanks to a swirl-port induction system, antifriction hydraulic roller tappets, and ...

We test the 2014 GMC Sierra equipped with the base 4.3L EcoTec3 V6 engine, rated at 285 hp and 305 lb-ft of torque while achieving 18 mpg city, 24 mpg highway.

On the oily bits front, the 4.8-liter Vortec V8 (L20) is no longer available. The replacement is a naturally aspirated V6 (LV1 V6) that develops 265 horsepower and 295 pound-feet at 4,000 rpm.

Rear axle, 3.23 ratio (Standard and only available on (LU3) 4.3L V6 or (L20) Vortec 4.8L V8 SFI FlexFuel on 2WD models. Refer to Engine/Axle chart for availability.) ...

Not available with (LU3) Vortec 4.3L V6 MFI engine.) Frame, full-length box ladder-type GVWR, 7300 lbs. (3311 kg) (Standard on **13405 models. Reference the Engine/Axle page for availability.) ...