K1 Technologies - K1 Technologies Forged Billet 4340 Steel H-Beam Connecting Rods - SB Chevy 6.000&quot; - Housing Bore: 2.225&quot; - Shaft Diameter: 2.100&quot; - Wrist Pin Diameter: .927&quot; - Bolt Size: 7/16&quot; - Gram Weight: 649