This 4.2L V8 engine, marked by the 5th digit VIN M, is an exceptional used engine choice for those in need of a robust and high-performance powertrain. The naturally aspirated design allows for consistent power delivery, while the electronic fuel injection ensures precise fuel management for smooth performance. The V-shaped 8-cylinder layout offers optimal balance and reduced vibration, enhancing driving experience and longevity. Its dual overhead camshaft provides precise valve timing, making this used engine a perfect option for heavy-duty applications that demand both reliability and efficiency.