Eagle Chevy 409 4340 Forged Crank - 4.000 Stroke 86030M 8 in Stroke

8 in Stroke

and an all-around improvement in performance

This street / strip oil pan for SM

The best part

Turbo-Hydramatic 375 and M40 automatic transmissions

Eagle Chevy 409 4340 Forged Crank - 4.000 Stroke 86030M 8 in StrokeEagle 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