Callies Magnum Plus Series Crankshafts
| o | 4340 Forging | o | Typical SB weight 47-51 pounds | |
| o | Perma-Tough Heat Treated | o | Typical BB weight 68-74 pounds | |
| o | Gun drilled mains on Small block | o | Pin Arm Profiling | |
| o | Counterweights Shaped & Profiled | o | Available in SB & BB Chevy, and SB Ford, & LS1 |
One Piece Rear Seal Flanges
Big Block
One piece seal design available for 1990 and newer in 4.250" and 4.375" strokes.
Small Block
One piece seal design available for 1986 and newer in 3.750" and 3.875" strokes.