|Stroke||Main Journal||Rod Journal||Rod Length||Bob Weight||Eagle PN|
|4.170″||351W 3.000”||2.100″||6.200″||Target 1900g||435141706200|
Small Block Ford 4.170″ Stroke 3.000″ Main 351 Windsor Eagle 4340 Forged Crank 435141706200
$925.00 Each - Free Shipping
Eagle 4340 Forged steel internally balanced crankshafts are our top-of-the-line competition crankshaft. Forged from ASME-certified 4340 steel in a non-twist forging, these cranks undergo X-Ray inspection, magnafluxing, and sonic testing to ensure quality. Journals are ground to exact specs and polished with our unique QPAC micro polishing system to achieve a roughness average of less than 2 RA. Target bobweight is held to within 2% of the specification to help eliminate guesswork when balancing.
All Eagle forged 4340 steel cranks are designed for internal balance without the need for heavy metal unless your bobweight is higher than the design target bobweight of the crank. Each crank is nitrided for superior hardness and wear protection. .125″ fillet radiuses are used on each journal for increased rigidity and strength. For this reason, chamfered or narrowed bearings must be used. Eagle forged 4340 cranks are intended for the most severe competition engines including nitrous, forced induction, and exotic fuels.
- Main Journal Dia. 3.000″ 351 Windsor
- Rod Journal 2.100″
- Min. Rod Length 6.200″
- Stroke 4.170″
- Target Bobweight 1900 grams
- Approximate Weight 58 lbs
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