Callies Magnum crankshafts are one of the most durable competition crankshafts ever made. They offer exceptional wear and strength for high horsepower applications.
- Premium Ultra Case Heat Treated SAE 4340 Steel
- Main Journal Dia. 302 or 351 Cleveland
- Rod Journal 2.000″ through 2.123″
- Enhanced rod oiling through the use of Main Bearing Oil Hole Lead-ins
- Gun Drilled Mains
- All Rod Journals Lightened
