What motor did the 1978 Chevy Silverado have?

There is no evidence of a model called 'Silverado' being launched in 1978 by Chevrolet. General Motors did launch a vehicle named Chevrolet C/K in 1978. Depending on the trim, the Chevrolet C/K could have the following engines:

- Chevrolet 305 cu in (5.0 L) V8 engine

- Chevrolet 350 cu in (5.7 L) V8 engine

- Chevrolet 454 cu in (7.4 L) V8 engine

- Oldsmobile 350 cu in (5.7 L) Diesel V8 engine

- Chevrolet 250 cu in (4.1 L) Inline-six engine

- Chevrolet 305 cu in (5.0 L) V6 engine

- Chevrolet 400 cu in (6.6 L) V8 engine

- Chevrolet 454 cu in (7.4 L) V8 engine

- Oldsmobile 350 cu in (5.7 L) Diesel V8 engine