SKU: EAG430232525400
UPC: 793348007427
MPN: 430232525400
The EAGLE SBF 4340 Forged Crank with 3.250 stroke is a precision-engineered crankshaft purpose-built for small block Ford engine applications requiring high-strength internal balance geometry. This forged steel crankshaft delivers the stroke specification critical for displacement and torque characteristics in Ford 289, 302, and related small block variants, whether configured for street performance, racing, or restoration builds.
The 3.250-inch stroke dimension establishes the piston travel distance, directly affecting engine displacement and low-to-mid-range torque output. Internal balance design eliminates the need for external counterweights, streamlining installation and reducing rotating mass. The forged steel construction provides superior fatigue resistance and durability under high-RPM loads compared to cast alternatives, making this crankshaft suitable for both naturally aspirated and forced-induction builds. Compatibility with 1-piece or 2-piece rear seal configurations ensures fitment flexibility across multiple small block Ford generations and block castings.
This crankshaft serves engine builders, restoration specialists, and performance enthusiasts rebuilding small block Ford powerplants. Whether for period-correct restoration, street engine assembly, or competitive racing applications, the SBF 4340 crankshaft provides the foundation for reliable, repeatable power delivery. At 53.2 lbs, the forged construction balances strength with practical handling during engine assembly and installation procedures.
Small block Ford crank specifications vary significantly across production years and displacements—stroke lengths of 2.750, 3.000, 3.250, and 3.400 inches correspond to different engine families and block castings. The 3.250-inch specification fits Windsor and some Windsor-based blocks, making proper identification essential before purchase. EAGLE's forged construction and internal balance geometry distinguish this component from cast offerings and support demanding engine applications where reliability cannot be compromised.
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