Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy - 3.480" - 400 Mains - Internal Balance - 1900 Bobweight - 4340 - Must Use 5.700" Rod or Longer - 400 CID SB Chevrolet H759C01M 3/4 in Hex Head

3/4 in Hex Head

All components

BLACK POWDERCOAT FINISH FITS ALL 1986-1993 FORD MUSTANG 5

Featuring a powerful 6-amp ignition module that drives a custom-wound performance coil up to 50

Eagle "ESP" Forged 4340 Steel Crankshaft - SB Chevy - 3.480" - 400 Mains - Internal Balance - 1900 Bobweight - 4340 - Must Use 5.700" Rod or Longer - 400 CID SB Chevrolet H759C01M 3/4 in Hex HeadEagle 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