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  • DuraMag Image
  • DuraMag

  • Callies DuraMag billet crankshafts are 100% made in the USA. They are an extremely durable option at a desirable price point. DuraMag Crankshafts are intended to be internally balanced.

  • DuraMag

    Standard Features

    • Deep DuraCase™ nitride treatment
    • Large True Form fillet radii in all journals
    • Keyed Shear Proof timing gear fit
    • Drilled rod journals for reduced inertia and ease of balance
    • Standard Duramax diameter but with strength enhancing 2.154 width
    • Machined from 4340 hardened steel
    • Dual Keyed Damper fit
    • Will accept OEM post and flange bolts
    • Machined to accept OEM flywheels / flexplates
    • All journals are polished to a 6Ra or finer finish
    • Main bearing oil holes are machined with lead-ins for enhanced cold start oil flow to rod journals
  • Stroke Main Pin Cammed for Rod Length Part #
             
    3.898 3.146 2.477 6.418 D333MU@-MB

     

  • « Back to Catalog
  • DuraMag Image
  • DuraMag

  • Callies DuraMag billet crankshafts are 100% made in the USA. They are an extremely durable option at a desirable price point. DuraMag Crankshafts are intended to be internally balanced.

  • DuraMag

    Standard Features

    • Deep DuraCase™ nitride treatment
    • Large True Form fillet radii in all journals
    • Keyed Shear Proof timing gear fit
    • Drilled rod journals for reduced inertia and ease of balance
    • Standard Duramax diameter but with strength enhancing 2.154 width
    • Machined from 4340 hardened steel
    • Dual Keyed Damper fit
    • Will accept OEM post and flange bolts
    • Machined to accept OEM flywheels / flexplates
    • All journals are polished to a 6Ra or finer finish
    • Main bearing oil holes are machined with lead-ins for enhanced cold start oil flow to rod journals
  • Stroke Main Pin Cammed for Rod Length Part #
             
    3.898 3.146 2.477 6.418 D333MU@-MB

     

  • « Back to Catalog

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