Application for BMW E30 M3 S14B23 88-91 L4 Specification TÜV PRODUCT TEST AND TÜV ISO 9001 CERTIFIED Type: Forged 4340 aircraft chrome moly quality steel for racing H-beam Conrods Quantity:1 set of 4 pieces Bolts: Including ARP 2000 bolts Note: Extra cost for upgrading to ARP L19 bolts Bolts Size: 3/8" ARP 2000 bolts Tolerance: Balanced to +/- 1 gram in set 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 acceleration: 9000rpm warranty: 1 Year Dimensions Center to center length: 144mm Big end diameter: 52mm Small end diameter: 22mm Big end width: 24mm Small end width: 24mm 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 pin Note 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. Learn more about CUSTOM SERVICE 1