The auto business’s transition to electrical automobiles hasn’t precisely stopped gasoline engine improvement. Although the long run could also be electrical, gasoline engines will nonetheless be round for a very long time, and automakers are nonetheless making an attempt to develop new, extra environment friendly internal-combustion powerplants Apparently, at the very least a type of has gotten the axe: GM Authority studies that Basic Motors has canceled improvement of an all-new turbocharged straight-six engine that’s been rumored for a while.
Final yr, it was reported that this new straight-six engine was within the planning levels. It was urged that it might be constructed from the two.7-liter turbocharged inline-four presently utilized in sure trims of the full-size Chevy Silverado / GMC Sierra in addition to the all-new Chevy Colorado and upcoming next-gen GMC Canyon. That engine makes 237 hp in primary tune, or 310 hp in high-output trim within the Colorado.
This straight-six apparently would have made these numbers pale compared. Sources say that GM was capturing for 500 hp and 500 lb-ft of torque. These numbers would have outgunned each of GM’s small-block V8 truck engines, the 5.3-liter and the 6.2-liter. Because the rumor goes, the straight-six would have seen obligation in GM’s full-size pickups in addition to their SUV variants, particularly the Tahoe, Suburban, Yukon and Escalade.
When reached by Jalopnik, a GM consultant wouldn’t verify that the turbo straight-six had ever been below improvement, and wouldn’t touch upon the rumor that it had been canceled.
If the rumored engine has really been axed for good, GM could come to remorse that call. Competing vans and SUVs from Ford, Stellantis and Toyota have all added turbocharged six-cylinder choices recently. The Toyota Sequoia presently affords a twin-turbo hybrid V6; Ford has been utilizing Ecoboost V6s within the F-150, Expedition and Navigator for years; and Stellantis affords the Jeep Wagoneer with a brand new 3.0-liter 510-hp twin-turbo straight six.
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Buyers wanting something new or different in their GM body-on-frame models may now have to wait until the General unveils its subsequent era of small block V8s, or go along with the corporate’s 3.0-liter Duramax turbodiesel. In a method, it’s a disgrace — with these rumored specs, GM’s straight-six engine may have simply been aggressive with the very best boosted sixes in the marketplace at this time.