Callies Cranks Number one choice of winners
541-942-5920
There is no substitute for American technology and quality
DragonSlayer crankshafts are Made in the U.S.A. for American Racers. With an expanded line of part numbers, the DragonSlayer is rapidly setting the standard by which other Sportsman crankshafts are measured.
These shafts are machined to the tolerances demanded by today’s high performance engine builder. Roundness and taper are held to less than .0003 on all rod and main journal diameters. Our final polishing procedures produce excellent load carrying surfaces that ensure extended bearing life and trouble free operation.
Each Callies DragonSlayer receives our unique Dura-Tough heat treatment. This process has proven to add extended long-term value to these highly stressed components. Callies heat treat expertise combined with our high purity premium 4340 forging produce strength of unparalleled value. All DragonSlayers are produced with standard Chevy rod journal diameters and widths for SBC, BBC, LS1, and Mopar applications.
PROUDLY MADE IN AMERICA
Proven High Strength Reliability
After years of service, Magnum crankshafts by Callies have established themselves as one of the most durable competition crankshafts ever produced. Magnum crankshafts are manufactured from ultra pure AISI 4340 steel. Callies then subjects this material to multiple heat treatments including our proven Perma-Tough process. This procedure results in a hard layer that is substantial. Perma-Tough treated cranks will never need to be heat treated again even after a -.060 in. regrind.
All Magnum cranks will have gun drilled mains and fully profiled counterweights, regardless of engine type. A typical 4.000 inch stroke Small Block Chevy will weigh less than 48 pounds.
Magnum crankshafts are available for a variety of engine types and can be manufactured to your specific configuration.
PROUDLY MADE IN AMERICA
Callies has once again established a new standard for lightweight crankshafts. Magnum XL lightening profiles result in crankshafts having extremely high strength to weight ratios. Material is carefully removed from non-stressed areas of each shaft to eliminate parasitic weight. The Callies Magnum XL profile is effective at minimizing windage within the crankcase atmosphere. Oil control is improved by not relying on counterweight undercutting to eliminate weight.
All Magnum XL crankshafts feature the Callies
Perma-Tough heat treatment. This process is a true heat treatment and
results in a hardened heat pattern that offers years of service and
re-grindability. Each main and rod journal is drilled for weight reduction and
throttle response improvement.
Magnum XL Lightening Profiles
Our unique Magnum XL lightening profiles were developed to
optimize material distribution for enhanced strength, superior bearing load
reduction, and consistent balance.
Sprint Car Specific 4 Bolt Flange
The first crankshaft designed for direct drive sprint
cars has won races and acclaim since its release. These unique shafts benefit
from extensive weight removal in the post and flange areas. The post is tapped
to accommodate a standard Callies stud.
Big Block Post
Big Block or Small Block diameters can be ordered for
the damper and gear fit area on your Small Block Chevy crank. Dual keyways can
be specified if needed.
LS1 Tone Wheel
GM LS Series Magnum XL cranks are available with tone
wheels for Gen III and Gen IV through 2005, or the billet version for late model
LS2 - LS7 engines.
Balancing included
Magnum XL crankshafts are shipped fully balanced to your
exact assembly weight without drilling. These shafts are available in many
custom configurations. Your order will be processed specifically to meet your
needs.
PROUDLY MADE IN AMERICA
Call for Pricing and specific applications
541-942-5920