General description Please carefully check the size of the rods in specific and description specifications. These forged conrods are designed for Ford XFlow Lotus Twin Cam BDA Cosworth engines, featuring a 5.23' wide H beam construction. They are TÜV PRODUCT TEST and TÜV ISO 9001 certified, ensuring high quality and performance. Technical specifications Piston Bolt Hole: ±4/1000mm Power: 600hp ~ 800hp per set Strength of the fastening (PSI): 220,000/230,000 PSI Torque: 48ft ≈ 65 NM Top speed: 9000rpm Quantity: 4 pieces per set Material: Forged 4340 aircraft chrome moly quality steel Weight Tolerance: Balanced to +/- 1 gram in set Center to center length: 132.84mm (Wide journal) Big end diameter: 52.91mm Small end diameter: 20.62mm Big end width: 26.8mm Small end width: 24.1mm Compatibility and accessories Application for Ford XFlow twincam BDA Cosworth BDG Includes genuine 3/8" ARP 2000 bolts (note: extra cost for upgrading to ARP L19 bolts) Installation Professional installation is