I-Force 5.7L V8 DOHC. Ready for work! Dependable! If you've been hunting for just the right 2007 Toyota Tundra to get some work done, then stop your search right here. The Tundra scored the top rating in the IIHS frontal offset test. It's the combination of advanced design and precision engineering that makes the i-Force 5.7L V8 DOHC engine such an impressive powerplant. SON BUENA GENTE!!!