3.580" Forged 4340 steel non twist forging with 360 Main Journals.

Lightening holes in all rod throws.

Cranks are 100% x-rayed, magnafluxed and sonic tested.

Stress relieved and shot peened.

.125 radious on all rod and main journals.

Chamfered oil holes.

Journals are precision ground & micro polished to less than 5. R.A.

Bob weight 2050 external balance.

Crank weight is 54, Shipping weight 60.