2019 Callies Catalog

ULTRA BILLET CRANKSHAFTS
ULTRA
Callies Ultra Billets are intended for use in
cutting edge applications where durability and
innovation are a must. Ultra billets are produced
from low carbon-high nickel steel that receives
multiple heat treatments. Our specialty steel
and heat treat processing yields a crankshaft
with fracture resisting ductility, stiffness and a
wear-resistant outer case.
Your Ultra billet can be ordered in many custom
configurations. These high alloy crankshafts
are intended for severe duty, high output
applications.
Ultra Billets Are Manufactured For
The Following Engine Families:
• Small Block Chevy
4.400” and 4.500” Bore Spacing
• Big Block Chevy
4.840”, 4.900”, 5.000”, 5.300” Bore Spacing
• LSx Cleveland Mains, all types, LT1
• SB Ford 302 and 351
• BB Ford 460
• Mopar Hemi - 440
• Gen III Hemi
• RY45
• Nissan GT-R
• Duramax
Each Ultra billet crankshaft is uniquely machined with our Ultra-Shed
counterweight profiles. The Ultra-Shed leading edge profile gently moves oil
away from the oncoming counterweight while the directional trailing edge
directs oil away from the oncoming rod journal.
Our Aero-Shed super finish will give you a
totally stress-riser free and incredibly aero
efficient crankshaft. When the Ultra-Shed
and Aero-Shed processes are combined,
the result is a crankshaft with the lowest
coefficient of drag in the industry.
2
Optional center counterweight
shown with Ultra-Shed leading
and trailing edge contouring
Rod journal holes and main bearing
gun drill bores are all highly polished
and radiused.
Top Fuel Hemi with Aero-Shed super finish
and splined post