Description
A balanced rotating assembly is the foundation of any reliable SBC build, and this Eagle kit delivers the durability and performance characteristics you need for street and strip applications. The hypereutectic piston design combined with a cast crank and I-beam rods provides the strength-to-weight ratio necessary for consistent power delivery without excessive reciprocating mass. Whether you’re building a daily driver or a weekend warrior, this pre-matched assembly eliminates guesswork and reduces the risk of component incompatibility.
- 357 CID displacement
- 4.040 in bore
- Cast crank construction
- Hypereutectic pistons
- 5.700 in I-beam rods
- Small Block Chevy compatible
- Street/strip rated
- Balanced assembly kit
- MPN: KITB15402E040






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