Bring modern reliability and timeless style to your Oldsmobile build with the March Performance Ultra Mid-Mount Serpentine Conversion. Engineered specifically for the Oldsmobile 350 V8, this system delivers superior belt alignment, strength, and performance at any RPM. Precision CNC-machined from solid 6061-T6 billet aluminum, it features a larger diameter crank pulley for improved accessory drive and idle performance. Available in clear or black powder coat, this maintenance-free setup combines exceptional durability with a clean, show-quality finish.