ApplicationCompatible for Triumph TR5 TR250 GT6 TR6 late model ConrodsNote: Re-bore engine is need for fit TR250/TR5Compatible for Triumph TR 5 250 1967 - 1968 Convertible 2.5 PICompatible for Triumph TR 6 - 1969 - 1976 Convertible 2.5, 2.5 PISpecification- Performance Con Rods- Type: Forged 4340 aircraft chrome moly quality steel for racing- H-beam Conrods Quantity: 6 Pieces as showing in picture- Bolts: Including 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: 146.05mmBig end diameter: 51.34mmSmall end diameter: 20.63mmBig end width: xxSmall 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 pinNote- Please Carefully check the Size of the Rods in Specific and Description- Professional 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.