Eagle Specialty Products 12001030 Competition Rotating Assembly CID Small Block Chevy - 355

The Eagle Specialty Products 12001030 Competition Rotating Assembly is a complete 355 cubic inch performance engine kit designed for pre-1986 small block Chevrolet 350 engines with two-piece rear main seals. This premium assembly delivers race-proven reliability and strength for demanding applications including nitrous oxide and forced induction systems.

Complete Assembly Includes:

• Forged 4340 steel crankshaft with 3.480-inch stroke
• 5.700-inch H-beam connecting rods with 7/16-inch ARP 8740 bolts
• Forged 4032 aluminum MAHLE pistons with -5cc flat top design for 4.030-inch bore
• Plasma-moly file-fit piston rings
• King XP series high-performance rod and main bearings

Key Specifications:

• Displacement: 355 cubic inches
• Bore: 4.030 inches
• Stroke: 3.480 inches
• Rod Length: 5.700 inches
• Power Rating: Suitable for up to 750 horsepower (1,500+ HP with rod bolt upgrade)

Eagle Competition Rotating Assemblies utilize only premium name-brand components and are test-fitted in-house to ensure precise fitment and optimal performance. Each assembly is manufactured using state-of-the-art equipment and undergoes rigorous quality control inspection.

Important Installation Note: This assembly is supplied unbalanced and must be professionally balanced by a qualified machine shop before installation and use.