General description H Beam Connecting Rods ARP 2000 are designed specifically for Ford X Flow and Lotus Twin Cam 1600 TC engines. These rods are made from forged 4340 aircraft chrome moly quality steel, ensuring high strength and durability for racing applications. Each set includes 4 pieces and comes with ARP 2000 bolts, with an option to upgrade to ARP L19 bolts for an additional cost. Technical specifications Center to center length: 122.58 mm Big end diameter: 52.91 mm Small end diameter: 20.62 mm Big end width: 23.7 mm Small end width: 24.15 mm Tolerance: Balanced to +/- 1 gram in set Piston Bolt Hole: +-4/1000 mm Power: 600~800 HP Strength of the fastening (PSI): 200,000 - 230,000 psi Torque: 48 ft ≈ 65 NM Top acceleration: 7000-9000 rpm Warranty: 2 years for any manufacturing defect Installation Professional installation is highly recommended as no instructions are included. Usage These connecting rods are ideal for high-performance racing applications, providing the necessary