For years, the naturally aspirated V6 gas engine was a mainstay of the General Motors lineup, offered as that sweet-spot combo of power, fuel economy, packaging, and smooth power delivery. Now, however, atmospheric V6 engines look to be on their way out the door, especially among General Motors’ product line. Indeed, the naturally aspirated GM V6 engine is slowly disappearing, as revealed by the number of naturally aspirated GM V6 engines offered in recent years.
Breaking it down, we find the most recent batch of atmospheric GM V6 engines offered in two distinct configurations – 4.3L units, and 3.6L units. Among these, the 3.6L configuration is the most popular, with GM’s line of crossovers, sedans, and small pickups offering engines like the LLT, LFX, LGX, and LFY.
Looking over the number of models that offer a naturally aspirated 3.6L GM V6 engine, we see a very clear decline. For the 2016 model year, 17 GM models offered the engine configuration, falling to 14 models for the 2018 model year, and 10 models for the 2021 model year.
|Chevrolet Caprice PPV||LFX||-||-|
|Chevrolet Impala PPV||LFX||-||-|
That said, we should also include the number of models that offer a naturally aspirated 4.3L GM V6 engine. Commonly found in The General’s line of vans and full-size pickups, examples include the LV3 and the LV1, with two models offering the configuration for the 2016 model year, and four models offering the configuration for the 2021 model year.
|Chevrolet Silverado 1500||LV3||LV3||LV3|
|GMC Sierra 1500||LV3||LV3||LV3|
While applications for the 4.3L configuration have expanded slightly in the last five years, taking both the number of 4.3L units and the number of 3.6L units into account shows a clear decline for the naturally aspirated GM V6, with a total of 19 models offering the configuration for the 2016 model year, 17 models offering the configuration for the 2018 model year, and 14 models offering the configuration for the 2021 model year.
The number of models offering an atmospheric GM V6 engine is expected to decline further going forward, replaced by smaller turbocharged four-cylinder and six-cylinder engines in the name of better fuel economy and lower emissions.
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