Performance, not size, will determine 2.7-liter I-4's success in Chevy Silverado, GMC Sierra Performance, not size, will determine 2.7-liter I-4's success in Chevy Silverado, GMC Sierra May 22, 2018 dzadmin Comments 0 Comment If consumers embrace General Motors’ four-cylinder engine in the next-generation Chevrolet Silverado and GMC Sierra pickups, GM will have Ford to thank.