GM Wants To Fix Its V8 Reputation Before The Next Silverado Arrives

Not Taking Chances

As General Motors prepares to launch the next-generation Chevrolet Silverado and GMC Sierra, the automaker is placing greater emphasis on engine reliability following issues affecting the outgoing 6.2-liter L87 V8. According to GM Authority, GM is aiming for “higher levels of quality and durability from the outset.”

The L87 is GM’s flagship gasoline engine and is also used in models such as the GMC Yukon and Cadillac Escalade. However, reliability concerns that prompted recalls and a class-action lawsuit have raised questions about the engine’s reputation. As such, changes to production processes could be crucial in ensuring the next-generation trucks get off to a strong start.

Tightening The Screws

The report, citing sources familiar with the matter, stated that GM could implement tighter quality-control measures for several key engine components in the new Gen 6 small-block V8, which shares its basic architecture with the LS6 V8 in the new Chevrolet Corvette Grand Sport. Some processes could also be moved in-house to “provide greater oversight of manufacturing consistency and component quality.”

Only time will tell whether these changes will be effective. For now, the new Gen 6 small-block V8 is expected to come in either 5.7-liter or 6.6-liter form. GM has invested $1.3 billion in U.S. and Canadian propulsion plants to support production of the new engine and other components. While the 5.3-liter L84 V8 is also expected to be axed, the 2.7-liter L3B turbocharged inline-four and 3.0-liter Duramax turbodiesel inline-six are likely to return in updated form.

The Next Chapter

The next-generation Silverado and Sierra, expected to arrive for the 2027 model year, are reportedly scheduled to begin production in October 2026. Leaked design patents suggest a more squared-off appearance, giving the trucks a taller and more commanding presence. The Silverado could also gain a front-seat massage function for the first time, a feature that has already been available on the Sierra.

If the new trucks avoid major issues like those tied to the L87, they could help GM regain confidence among buyers and build on the renewed interest in combustion-powered models following years of aggressive electrification plans. Their archrival, the Ford F-Series, reportedly is not expected to receive a major overhaul until 2029, which could give GM more time to strengthen its position in the full-size truck market.