A down-sized version of GM's popular 2.7-liter gasoline engine in works
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In a bid to enhance efficiency and cater to the evolving demands of the market, reports suggest that General Motors (GM) is in the works to develop a smaller version of its popular 2.7-liter four-cylinder truck engine in the United States.
The new iteration will add to its Cylinder Set Strategy (CSS) line of engines. A report by GMAuthority says that the automaker is in the final stages of developing a 2.5-liter inline four-cylinder gasoline DOHC (Dual OverHead Cam) motor.
This strategic move aims to offer customers a broader range of options while maintaining the engine's impressive performance. The move gains relevance as most automakers increasingly focus on electric powertrains and platforms as the industry transitions to greener options.
The lineup currently has a range of gasoline engines
The automaker has broadly four types of four-cylinder gasoline engines in this series, starting with a 1.3-liter (L3T), 2.0-liter (LSY), and various iterations of its 2.7-liter block. The former is offered with Chevy Trailblazer, while the latter can be seen in Cadillac CT4, CT5, XT4, XT5, XT6, Chevy Blazer, and GMC Acadia.
The 2.7-liter L3B engine from GM comes in two variations: one for Cadillac and one for trucks (Chevy Silverado 1500/GMC Sierra 1500). The truck engine is startlingly powerful for a sub-3.0-liter four-cylinder engine, producing 310 horsepower and 430 pound-feet of torque. It produces 325 horsepower and 380 pound-feet of torque in the Cadillac CT4-V. Although the new 2.5-liter engine's estimated power output is unknown at this time, 300 horsepower and 350–400 pound-feet of torque don't seem improbable. A less expensive L3B variation known as the L2R engine, which produces 237 horsepower and 260 pound-feet of torque, also exists in the CCS lineup.
A down-sized version of the 2.7-liter block
The new motor is likely to be a scaled-down L3B engine. That indicates it will be an inline-four made entirely of aluminum with a single turbo and dual overhead cams (DOHC). Reports reveal that the motor will be tuned to produce a healthy torque figure while providing better fuel efficiency.
It is unclear if the new 2.5-liter iteration is intended to replace the current 2.7-liter L3B engines in the lineup. There is also a possibility that it may replace either one - Truck or the Cadillac version. GM may also add the product to its lineup, letting it co-exist with other variants.
It is expected that news regarding the development will officially surface by the end of the year.
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