Eagle BB Chevy 4340 Forged Crank - 4.250 Stroke - L/W 30010BK In most applications the new

In most applications the new hydraulics are a direct Original Equipment (O

Key Features:

1955-1966 Pontiac Star Chief

Manual wing adjuster is for sprint car top wings when rules do not permit the use of hydraulic cylinders

Hydraulic - Magnum: Great for street machines

Eagle BB Chevy 4340 Forged Crank - 4.250 Stroke - L/W 30010BK In most applications the newEagle 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