Application For BMW S38 B35 1988 M5 M6 For BMW S38: straight-6 DOHC piston engine S38B35 1986 - 1988 , for BMW E28 M5 (NA spec), for BMW E24 M6 (NA spec),; for BMW E24 M635CSi with catalytic converter S38B36 1989 - 1993 for BMW E34 M5 (NA spec) and Euro spec 1989–1992 S38B38 1992 - 1996 for BMW E34 M5 Specification - TÜV Certification Con Rods - Type: Forged 4340 aircraft chrome moly quality steel for racing - H-beam Conrods Quantity: 6 Pieces as showing in the picture - Bolts: Including ARP 2000 bolts - Note: Extra cost for upgrading to ARP L19 bolts - Bolts Size: ARP 2000 3/8" bolts - Tolerance: Balanced to +/- 1 gram inset - 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: 2 years warranty for any manufacturing defect Dimensions Center to center length: 144mm Big end diameter: 52mm Small end diameter: 22mm Big end width: 23.9mm Small end width: 23.9mm