Eagle BB Chevy 4340 Forged Crank - 4.500 Stroke HB22031SPL Single Pass

Single Pass

8 cylinder with distributor Up to 70% more spark-gap energy than stock ignitions

6061-T6 Billet Aluminum Construction:

Throttle body recommendations: Edelbrock #38783 with progressive linkage #7094

Eagle BB Chevy 4340 Forged Crank - 4.500 Stroke HB22031SPL Single PassEagle 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