Eagle forged 4340 steel H-Beam rods for 4B11 Evo X. Available with your choice of rod bolts, ARP 2000 for 900HP or ARP 625+ for 1200HP. Please do all your research and consult your engine builder if necessary before purchase. If you need help, just give us a call!Vehicle Fitment:2008-2015 Evolution XImportant Notes:Torque to 43 ft-lbs, use ARP moly lube ONLY! Part Number: HP Rating: Rod Bolts: CRS5659M3D 900HP H-Beam 3/8" ARP 2000 CRS5659MXD 1200HP H-Beam Extreme Duty 3/8" ARP Custom Age 625+ Forged 4340 steel H-Beam connecting rods are forged from a two-piece forging and feature a fully machined and shot-peened surface. Sizing is held to exact tolerances. Sold as a weight-matched set. Recommended for competition use.Additional Rod Specs:• Material: Forged 4340 Steel• Center to Center Length: 5.659"• Pin Size: 0.906"• Pin End Width: 0.861"• Rod Journal: 2.046"• Housing Bore: 2.1655"• Big End Width: 0.861"• Typical Weight: 565g• Bushed for Full-Floating Piston PinPurchase Includes:(4) Rods with BoltsWhat's the difference between H-Beam and Extreme Duty?The H-Beam rods are rated for 900 HP, come with ARP 2000 rod bolts and the part numbers end with 3D. The Extreme Duty rods are rated for 1200 HP, come with ARP 625+ bolts and the part numbers end with XD.Eagle H-Beam (3D) 3rd Gen Design rods utilize large-scale manufacturing to keep costs low, but only use ASME-certified 4340 steel, ARP bolts and silicon-bronze bushings. Eagle H-Beam rods are the preferred choice for high horsepower, high RPM competition engines utilizing nitrous, forced induction or exotic fuels. The 3D H-Beam rods come with 3/8" ARP 2000 bolts. These are recommended for use up to 900hp (4 cyl) and 1500hp (6 cyl) in turbocharged applications.Eagle Extreme Duty (XD) rods feature the same time-tested 3rd generation design, but further surface polishing improves fatigue life by removing microscopic pits and inclusions where fatigue cracks begin. In addition, ARP's premium fastener material, Custom Age 625+, is used. ARP Custom Age 625+ material boasts a typical tensile strength of 245,000 psi vs. ARP 2000's 220,000 psi. It comes with a hefty price tag, though. The rods are not for the faint of heart. Power ratings have not been established for these rods. Honestly, we just haven't had any fail yet. They are not indestructible, though. We feel the power capabilities to be somewhere in the 1200 hp range for 4 cylinder and 1800 hp for 6 cylinder applications. See more Eagle Products
