Silverado High Country 2025 Diesel 2025. Here’s how the 2025 chevrolet silverado hd compares to the outgoing truck by the numbers. With only 305 hp on tap, which peaks at a high (for a diesel) 3,750 rpm, we’ve found that regaining lost speed and momentum at times proves challenging.

2025 chevrolet silverado 3500 high country first test: With only 305 hp on tap, which peaks at a high (for a diesel) 3,750 rpm, we’ve found that regaining lost speed and momentum at times proves challenging.