Eagle 13303L030 Small Block Chevy Rotating Assembly Kit - 8 Cylinder .030 Overbore

The Eagle 13303L030 is a complete rotating assembly kit designed for Small Block Chevy V8 engines. This unbalanced assembly provides a cost-effective foundation for engine builds requiring professional balancing to match specific application requirements.

Complete Assembly Includes:

• Eagle cast steel crankshaft with .092" fillet radiuses for enhanced strength
• Eagle SIR (Super I-Beam Rod) forged 5140 steel connecting rods
• Hypereutectic aluminum pistons sized at .030" overbore
• Premium piston rings with file-fit design
• Rod and main bearings

Key Features:

• Unbalanced assembly allows custom balancing by qualified machine shop
• Cast steel crankshaft provides excellent durability for street and strip applications
• SIR connecting rods feature 3/8" ARP 8740 capscrew bolts
• Suitable for engines producing up to 500 horsepower
• Quality components test-fitted at Eagle's facility for proper clearances

Important: This is an unbalanced assembly and must be balanced by a qualified machine shop before installation. Internally balanced configurations require a neutral flexplate and harmonic balancer (sold separately).

Eagle Specialty Products is a trusted name in performance engine components, offering reliable rotating assemblies that deliver strength, performance, and value for both street and strip applications.