General Motors is reportedly introducing a next-generation v-8 engine that will come in 5.7-liter and 6.6-liter sizes. The new engine will be part of the 2027 chevy silverado lineup, which is described as the most powerful and advanced silverado ever. However, there is uncertainty about the specific engine options, with some reports mentioning the return of classic v8 engines such as the 350, while others speculate about the possibility of a detuned corvette engine.