BB Chevy 4340 Steel Crankshaft - 4.00" Stroke, 6.135" Rod, 1RMS

BB Chevy Eagle 4340 Steel Crankshaft - 4.000" Stroke, 6.135" Rod, 1pc Seal, Int Balance, Cross Drilled for Mark V and Mark VI

ESP-445440026135

"ESP" 4340 steel cranks feature exceptional strength and unsurpassed quality at a reasonable price. The perfect choice for demanding applications.

• Forged 4340 steel non-twist forging
• Multi-stage heat treat process
• Cranks are 100% x-rayed, magnafluxed & sonic tested
• Stress relieved & shot peened
• .125 radius on rod & main journals for increased strength
• Full Counterweight designed for easy balancing
• Precision ground & micro-polished journals to less than 5 R.A.
• Cross drilled oiling & chamfered oil holes for improved oiling
• Indexed for correct stroke
• Nitrided journal surfaces for superior wear resistance