Product Summary

3.750" Stroke, 350 mains Main Journal Style

  • Specifically designed to fit the Small Block Chevy 383 C.I. engine
  • Built using properly placed counterweights that not only improve balance but reduce bearing loads
  • Features double stress relief operations that make these crankshafts very dimensionally stable
  • Made from forged 4340 steel that is hardened with nitride
  • All rod journals are drilled and counterweights are profiled for piston clearance
See more details

Key Specs

Stroke3.750"
Main Journal Style350 mains
Crankshaft MaterialForged 4340 Steel
Main Journal Diameter2.448"
Rod Journal Diameter2.100"
See more specs

Need To Know

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Callies SAJ113CS Details

Callies solid modeling abilities provide a great advantage in Small Block Chevy 383 crankshaft development. They’re able to precisely locate material where it will yield the greatest advantage in terms of both strength to weight, and balance ability.

Beginning with properly placed counterweights that not only improve balance but reduce bearing loads, every aspect of these highly stressed components has been analyzed. The forgings are rough machined in a process that includes double stress relief operations that make these crankshafts very dimensionally stable.

Hardened with a deep nitride, Compstar cranks are ideal for all types of abusive racing environments. All rod journals are drilled and counterweights are profiled for piston clearance. With a consistent grind and polish, along with precise stroke and index, you will see why we say these crankshafts are Compstar Correct!

Item Details

Stroke 3.750"
Rod Length 6.0"
Rod Journal 2.100"
Mains 350 2.448"
Rear Main Seal 2-Piece

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Callies SAJ113CS Specifications

KEY SPECS
MFG. Part #SAJ113CS
BrandCallies
Stroke3.750"
Main Journal Style350 mains
Crankshaft MaterialForged 4340 Steel
Main Journal Diameter2.448"
Rod Journal Diameter2.100"
Rear Main Seal Style2-piece
GENERAL
Connecting Rod Length6.000"
Sold in QuantityEach

Questions & Answers

4 Questions • 4 Answers

Does the manufacturer specify what type of balance, like using a weighted flexplate/flywheel or specific harmonic balancer?

by Tom

• 4 years ago

1 answer

A well built balanced 383 sb Chevy on alcohol at 12 to 1 compression 375 stroke solid roller cam 610 lift 300 duration what kind of horse power could I possibly aspect using it for dirt late mod?

by Dan

• 8 years ago

1 answer

What is the target bobweight of this crank?

by Desselleracing

• 13 years ago

1 answer

How much does it way?

by hazzurd

• 13 years ago

1 answer

4 of 4 questions shown

Fitment

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