Shipments from Cross-border warehouse may result in customes duty, Kindly please note this and buyer is responsible for it. Please Carefully check the Size of the Rods in Specific and Description Why Choose Us 1. Material: Forged SAE 4340 Chrome Moly Steel for the highest strength and durability, dedicated for Racing； 2. Genuine ARP 2000 bolts ,Optional ARP L19 fasteners available as an upgrade ； 3. H-Beam design reduces weight without compromising strength； 4.Heat-treating & Shot-peened for remained consistent and strong. Shot-peened finish to remove potential for stress risers； 5.100% CNC machined,Precision rod cap alignment dowels ； 6.Bores finished to +/- .01 mm ； 7.Balanced to within +/- 1 g per rod ； 8. Each rod is magnetic particle tested to ensure free of flaws ； 9.100% X-rayed, sonic tested； Process parameters The big end bores are honed to a +/-.0004 in tolerance The connecting rods all include ARP 2000 bolts, which are rated at 220,000 psi, and the optional ARP L19 material