ApplicationCompatible for Fiat 500 Old Model 2-cyl 126mmSpecificationPerformance Con Rods Type: Forged 4340 aircraft chrome moly quality steel for racing H-beam Conrods Quantity: 2 Pieces a set Bolts: Including Genuine 5/16\" ARP 2000 bolts Note: Extra cost for upgrading to ARP L19 bolts Bolts Size: 5/16\" Tolerance: Balanced to +/- 1 gram in set Piston Bolt Hole: +-4/1000mm Power: 600hp ~ 800PS per set Strength of the fastening (PSI): 220,000/230,000 PSI Torque: 48ft ≈ 65 NM Top acceleration: 7000rpm warranty: one year warranty for any manufacturing defectDimensionsCenter to center length: 126mm Big end diameter: 47.13mm Small end diameter: 20.005mm Big end width: XX Small end width: XXFeature- Forged SAE 4340 Chrome Moly Steel for the highest strength and durability, dedicated for Racing - Designed and processed by CNC machine. - All big and small ends are finished with SUNNEN honing machine - Precision alignment sleeves positively locate the rod cap, maintaining big end bore size and eliminating cap walk - 100% X-rayed, sonic tested and magnafluxed - Multi-stage heat treated - Shot peened to relieve stress - Come with the bronzed bushing suitable for the floating piston pinNoteProfessional installation is highly recommended (No Instruction Included) Custom Service:If there\'s no conrods you need on our site, we would be happy to help determine your requirements and develop a solution with you to satisfy your needs. Learn more about CUSTOM SERVICE