Description Eagle ESP H-Beam Forged Connecting Rods for the K20A2 K20Z1. By utilizing forged 4340 steel, ARP 2000 fasteners, and state of the art machining system, these con-rods are made of the highest quality and built to be abused. Eagle Rod features “Two Piece Forging” and high quality H-BEAM Forged 4340 steel for superior fatigue life. Rod caps are separately forged for the grain to be perpendicular thereby strengthening the connecting rod. Eagle also uses special “mix” in their ESP 3-D lines to further strengthen & extend fatigue life without making the rods brittle.
