Eagle Chevy 350 1Pc 3.480in Crank 5.700in H-Beam -5cc Flat Top 4.030in Pistons Balanced Assembly

If you're building a high-performance Chevy 350 engine, especially one intended for racing, nitrous, or forced induction, a balanced rotating assembly is a critical starting point. This assembly from Eagle takes the guesswork out of matching key internal components, ensuring they work together harmoniously from the start.

At its core is a 3.480-inch forged 4340 crankshaft, known for its strength and durability under demanding conditions. Paired with this are 5.700-inch H-beam connecting rods, which are a popular choice for their robust design. These rods are secured with 7/16-inch ARP 8740 bolts, a name trusted for their reliability in high-stress applications. The pistons are forged 4032 aluminum from Mahle, featuring a -5cc flat top design and a 4.030-inch bore size, ready to be paired with your chosen cylinder heads. This assembly also includes plasma-moly file-fit piston rings, allowing for precise gap adjustment during installation, and King XP rod and main bearings, selected for their performance capabilities.

This is a balanced assembly, meaning the crankshaft, connecting rods, pistons, rings, bearings, and harmonic balancer (if applicable, though not explicitly listed as included here) have been precisely weighted and matched to reduce engine vibration and improve overall smoothness and longevity. This balanced rotating assembly is a solid foundation for a powerful engine build. Please note that this assembly is not CARB approved and cannot be shipped to California.