ApplicationCompatible for Austin Mini Cooper S 1.3L BMC A-Series SpecificationPerformance Con Rods Type: Forged 4340 aircraft chrome moly quality steel for racing H-beam Conrods Quantity: 4 Pieces a set Bolts:Including Genuine ARP 2000 bolts Note: Extra cost for upgrading to ARP L19 bolts Bolts Size: ARP 2000 5/16\" bolts 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: 146.05mm Big end diameter: 44.98mm Small end diameter: 20.63mm Big end width: xx Small end width: xx Feature-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