Eagle H-beam connecting rods are forged from SAE 4340 steel for superior strength. ARP bolts (2000, 8740 or L19 Series) and alignment sleeves are used for durability and precise cap location. Sets are weight matched to +/- 1g. Sizing is performed on the unique Sunnen Krossgrinding system for a perfect housing bore. These are the perfect choice for engines up to 750 hp. PartNumber : eagCRS5806C3D Description : Forged Steel H-Beam Connecting Rods; Set Of 4 Length : 5.806" Weight : 590g Bolts : ARP 2000 1988 Oldsmobile Cutlass Calais Base L4.-cc Engine Components::Connecting Rods - 4Cyl 1991 Oldsmobile Cutlass Calais Base L4.-cc Engine Components::Connecting Rods - 4Cyl 1989-1991 Oldsmobile Cutlass Calais S L4.-cc Engine Components::Connecting Rods - 4Cyl 1988-1991 Oldsmobile Cutlass Calais SL L4.-cc Engine Components::Connecting Rods - 4Cyl