Smeding Performance LS 6.125" 4340 Rods start out as a 4340 steel alloy billet, are shot peened to decrease surface stress and heat treated in increase tensile strength. All Smeding Performance LS 6.125" 4340 Rods have a long-life bronze bushing wrist pin and come standard with SP8740 7/16" fasteners for performance applications. LS 6.125" 4340 H-Beam:6.125" Length Center-to-Center4340 Forged High Tensile Strength AlloyBronze Bushed .927" Wrist Pin2.100" Precision Honed Crank PinSP8740 7/16"...

Smeding Performance LS 6.125" Pwr Adr 300m Rods start out as a 300m steel alloy billet, are shot peened to decrease surface stress and heat treated in increase tensile strength. All Smeding Performance LS 6.125" Pwr Adr 300m Rods have a long-life bronze bushing wrist pin and come standard with ARP2000 7/16" fasteners for extreme applications. LS 6.125" Pwr Adr 300m H-Beam:6.125" Length Center-to-Center300m Billet High Tensile Strength AlloyBronze Bushed .927" Wrist Pin2.100" Precision Honed ...

Smeding Performance LS 6.125" Pwr Adr 4340 Rods start out as a 4340 steel alloy billet, are shot peened to decrease surface stress and heat treated in increase tensile strength. All Smeding Performance LS 6.125" Pwr Adr 4340 Rods have a long-life bronze bushing wrist pin and come standard with ARP2000 7/16" fasteners for extreme applications. LS 6.125" Pwr Adr 4340 H-Beam:6.125" Length Center-to-Center4340 Forged High Tensile Strength AlloyBronze Bushed .927" Wrist Pin2.100" Precision Honed ...