Ovate Beehive Valve Spring & Retainer Kit, OD: 1.207 in., ID: 0.650 in., Seat Load: 135 lbs. at 1.800 in., Open Load: 348 lbs. at 1.175 in., Coil Bind Height: 1.100 in., Rate: 340 lbs., Set of 16|Howards Cams Ovate Beehive Valve Spring & Retainer Kit 1.207 in. OD.