Catalog

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
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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