Eagle B11421000 Competition Rotating Assembly Chevy Big Block - 454-482

The Eagle B11421000 is a balanced competition rotating assembly designed for Chevrolet big block engines ranging from 454 to 482 cubic inches. This complete stroker kit delivers the performance and durability needed for high-performance street and competition applications.

Key Components:

• Forged 4340 steel crankshaft with 3.766-inch stroke for increased displacement and torque
• 6.135-inch forged 4340 steel I-beam connecting rods with 7/16-inch ARP 8740 bolt upgrade
• Forged 4032 aluminum Wiseco pistons with 21cc dome design for 4.250-inch bore
• File-fit piston rings included for precise fitment
• Racing-grade rod and main bearings
• Factory balanced by Eagle for hassle-free installation

This competition-grade assembly is built with premium materials and tight tolerances to handle serious horsepower. The forged 4340 crankshaft provides exceptional strength and rigidity over cast cranks, while the I-beam rods with ARP bolt upgrades deliver reliable performance under high loads. Pre-balanced by Eagle, this rotating assembly is ready for installation without additional machine shop work, making it an excellent value for engine builders looking for proven performance components.