Eagle BB Chevy L/W 4340 Forged Crank - 4.000 Stroke Books Videos & Software Cast using premium grade alloys

Cast using premium grade alloys for superb thermal shock stability

Fold Down For Use And Fold Back Up When Not In Use

500" Shaft Diameter

Mini Enduro Roll Cage

2 to 5 in Lowered

Eagle BB Chevy L/W 4340 Forged Crank - 4.000 Stroke Books Videos & Software Cast using premium grade alloysEagle forged 4340 steel cranks feature a non twist forging, . 125" fillet radiuses for superior strength so chamfered narrowed bearings required, nitrided surface, &amp micropolished to &lt 2 ra. Intended for the most demanding applicationForged AISI ASME certified 4340 steel with multi stage heat treatment for superior strength Service: Eagle connecting rods and cranks are designed and manufactured to our specifications. Some simply purchase generic