Forged series 4340 steel connecting rods are core hardened to increase tensile strength and mag-particle inspected. Rods are fitted with ARP fasteners and finish honed. Center-to-center dimensions are held within +/-. 001" and journals are honed to +/-. 0001". All rods listed below are bushed for full floating wrist pins. Offered with choice of standard 3640 or premium ARP 2000 fasteners. Billet 4340 Steel H Beam connecting rods. Closely monitored material mechanical properties for optimum performance. Designed and finish honed in the USA. Sizes held to some of the tightest tolerances in the industry, +/- . 0001" and +/- 1 gram per end. Shot peened for improved fatigue life. Bronze wrist pin bushings. Exclusively using ARP 2000 fasteners. Sold in sets of eight.Pit Stop USA offers K1 Technologies Forged Billet 4340 Steel H-Beam Connecting Rods - SB Chevy 6.000" - Housing Bore: 2.225" - Shaft Diameter: 2.100" - Wrist Pin Diameter: .927" - Bolt Size: 7/16" - Gram Weight: 649 CH6000ALLB8A at low everyday prices. Be sure to check out all of our products from K1 Technologies including K1 Technologies K1 Technologies H-Beam Connecting Rods.