Eagle Oldsmobile 455 4.250in Crank 6.735in H-Beam -5cc Flat Top 4.185in Pistons Balanced Assembly

If you're rebuilding the heart of your Oldsmobile 455 and looking for a solid foundation for street performance, this balanced rotating assembly from Eagle is a strong contender. It's built for pump gas, naturally aspirated applications, making it a great choice for bringing your classic engine back to life or giving it a significant upgrade for daily driving and weekend cruising.

This assembly comes with a 4.250-inch cast crankshaft, paired with 6.735-inch H-beam connecting rods secured by 7/16-inch ARP 8740 bolts. For the pistons, you get forged 4032 SRP flat-tops with a -5cc dish, designed to work with a 4.185-inch bore. The package also includes plasma-moly file-fit rings and King SI rod and main bearings, ensuring all the critical rotating components are ready to go. Having the assembly balanced from the factory saves you a significant step and ensures smoother operation right out of the box.

Keep in mind that this assembly is not CARB approved and cannot be shipped to California. It's a well-built package designed to handle the demands of a street-driven vehicle, providing a reliable and powerful rotating assembly for your Oldsmobile 455 project.