Heavy-Duty OE Replacement Connecting Rods, Certified 8620 AISI Steel Provides Superior Strength, Crankpins Are Manufactured From Hot-Rided ASTM 4115 and Case Hardered to Level of 58-62R, feature Uniquely Designed Big End uses strategically located side scalloping and vent slots to minimize Race distortion at high rpm, small ends are double drilled to supply extra lubrication and cooling to the wrist pin bearing, which is eSPECALLY Rodamiento, con el disparo para eliminar los elevadores de estrés y para combinar suavemente los radiografías del falsificador de la barra, el doble perfeccionamiento produce una superficie de cojinete ultra ronda para la confiabilidad a altas RPM, la mayoría de los conjuntos de varillas se venden con lavadoras de empuje de fósforo de bronce de plata.