Crankshaft must be balanced to match your specific rods and pistons.
 
Highlights:
material: cast mild steel
intended balance: external
target bobweight: 2420g
stroke: 4.000"
rod journal: 2.2"
rod journal width: 2.000"
main journals: 2.749"
minimum rod length: 6.135"
typical weight: 62 lbs.
rear seal diameter: call
snout diameter: 1.6"
flywheel bolts: 6
pilot bore diameter: 1.094"
flywheel register diameter: call
Prop 65 Warning
 
CAST CRANK - CHEVROLET 454, 1PC REAR SEAL