Using decades of research and stringent quality controls, Eagle Specialty Products creates the finest steel connecting rods, crankshafts, and other components for your high performance rotating assembly. Street or track, Eagle Specialty has a huge selection of parts to choose from, such as the greater-than-stock strength and value price of SIR connecting rods, or the superior durability of ESP H-beam rods for high-horsepower engines. For the ultimate in performance, grab one of Eagle Specialty’s performance-matched rotating assembly kits, complete with rods, pistons, and crankshaft. With such quality and selection, it’s.