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  • Ultra Enforcer Image
  • Ultra Enforcer

  • Callies Ultra Enforcer connecting rods are produced from extremely clean TimkenSteel Product that is formulated to our exact specifications. This proprietary steel is forged in Trenton, Michigan, and manufactured 100% in our Fostoria, Ohio facility. Pride in workmanship, and attention to detail are qualities you’ll discover during careful examination of our finished product. Each step of the manufacturing history of every Ultra connecting rod is meticulously maintained by our manufacturing team. You can be confident of the material and workmanship of these quality components.

    Designed with fortified tower flanges, Enforcer I-beam connecting rods are the ideal component for turbo charged and super charged engines.

  • Ultra Enforcer Connecting Rods

    Standard Features

    • Produced from clean 4330V TimkenSteel product
    • Intended for boosted applications
    • Buckle resistant I-Beam design
    • Increased mass, pressure Angle Arches, guarantee wrist pin stability
    • Robust tower flanges provide enhanced resistance to bend and twist
    • 2,400 HP per cylinder capability
    • L-19 bolts, Multi Phase 3.5 available
  • Below is only a partial listing of part numbers. Please call for additional part number information and availability.

    Small Block Chevy
    Description Rod Journal Typical Wt. Part #
    6.000   2.100   U18235  
    6.200   2.100  705 g.  U14245  
               
    Big Block Chevy
    Description Rod Journal Typical Wt. Part #  
    6.385   2.200  159 g.  U15210  
    6.535   2.200  874 g. U15211  
    7.100   2.200  700 g. U15275  
               
    LS1
    Description Rod Journal Typical Wt. Part #  
    6.125   2.100  703 g. U17175  
               
    Ford
    Description Rod Journal Typical Wt. Part #  
    5.879   52mm  635 g. U14820-3.5  
    6.011   56mm  686 g. U14821-3.5  
    6.200   2.100  709 g.  U14945  
               
    Sport Series
    Toyota
    Description Rod Journal Typical Wt. Part #  
    5.590   52mm  639 g.  U18100-3.5 Toyota 2JZ – 3/8” ARP 3.5 Multiphase
    5.590   47.95mm  666 g. U18101 Toyota 2JZ – 7/16” ARP H11
               
    Nissan
    Description Rod Journal Typical Wt. Part #  
    6.500   2.205   U15400 Nissan GTR – 7/16” Bolts
    6.500   2.200   U15405 Nissan GTR (BB Pin) – 7/16” Bolts
               
    Subaru
    Description Rod Journal Typical Wt. Part #  
    5.138 / 130mm   2.047 / 52mm  580 g. U16700-3.5 Subaru EJ20 – 3/8” Bolts
    5.217 / 133mm   2.047 / 52mm  587 g. U16710-3.5 Subaru EJ20 + 2mm – 3/8” Bolts
    5.295 / 134.5mm   2.047 / 52mm   U16715-3.5 Subaru EJ20 + 4mm – 3/8” Bolts
     
    Mitsubishi
    Description Rod Journal Typical Wt. Part #  
    5.695 / 144mm   2.165 / 52mm  627 g. U16720-3.5 Mitsubishi 4B11 – 3/8” Bolts
    5.906 / 150mm   1.890 / 45mm  670 g. U16730 Mitsubishi 4G63 – 7/16” Bolts
    6.024 / 153mm   1.890 / 45mm  679 g. U16740 Mitsubishi 4G63 – 3/8” Bolts
    6.142 / 156mm   1.890 / 45mm  680 g. U16750 Mitsubishi 4G63 – 7/16” Bolts
  • « Back to Catalog
  • Ultra Enforcer Image
  • Ultra Enforcer

  • Callies Ultra Enforcer connecting rods are produced from extremely clean TimkenSteel Product that is formulated to our exact specifications. This proprietary steel is forged in Trenton, Michigan, and manufactured 100% in our Fostoria, Ohio facility. Pride in workmanship, and attention to detail are qualities you’ll discover during careful examination of our finished product. Each step of the manufacturing history of every Ultra connecting rod is meticulously maintained by our manufacturing team. You can be confident of the material and workmanship of these quality components.

    Designed with fortified tower flanges, Enforcer I-beam connecting rods are the ideal component for turbo charged and super charged engines.

  • Ultra Enforcer Connecting Rods

    Standard Features

    • Produced from clean 4330V TimkenSteel product
    • Intended for boosted applications
    • Buckle resistant I-Beam design
    • Increased mass, pressure Angle Arches, guarantee wrist pin stability
    • Robust tower flanges provide enhanced resistance to bend and twist
    • 2,400 HP per cylinder capability
    • L-19 bolts, Multi Phase 3.5 available
  • Below is only a partial listing of part numbers. Please call for additional part number information and availability.

    Small Block Chevy
    Description Rod Journal Typical Wt. Part #
    6.000   2.100   U18235  
    6.200   2.100  705 g.  U14245  
               
    Big Block Chevy
    Description Rod Journal Typical Wt. Part #  
    6.385   2.200  159 g.  U15210  
    6.535   2.200  874 g. U15211  
    7.100   2.200  700 g. U15275  
               
    LS1
    Description Rod Journal Typical Wt. Part #  
    6.125   2.100  703 g. U17175  
               
    Ford
    Description Rod Journal Typical Wt. Part #  
    5.879   52mm  635 g. U14820-3.5  
    6.011   56mm  686 g. U14821-3.5  
    6.200   2.100  709 g.  U14945  
               
    Sport Series
    Toyota
    Description Rod Journal Typical Wt. Part #  
    5.590   52mm  639 g.  U18100-3.5 Toyota 2JZ – 3/8” ARP 3.5 Multiphase
    5.590   47.95mm  666 g. U18101 Toyota 2JZ – 7/16” ARP H11
               
    Nissan
    Description Rod Journal Typical Wt. Part #  
    6.500   2.205   U15400 Nissan GTR – 7/16” Bolts
    6.500   2.200   U15405 Nissan GTR (BB Pin) – 7/16” Bolts
               
    Subaru
    Description Rod Journal Typical Wt. Part #  
    5.138 / 130mm   2.047 / 52mm  580 g. U16700-3.5 Subaru EJ20 – 3/8” Bolts
    5.217 / 133mm   2.047 / 52mm  587 g. U16710-3.5 Subaru EJ20 + 2mm – 3/8” Bolts
    5.295 / 134.5mm   2.047 / 52mm   U16715-3.5 Subaru EJ20 + 4mm – 3/8” Bolts
     
    Mitsubishi
    Description Rod Journal Typical Wt. Part #  
    5.695 / 144mm   2.165 / 52mm  627 g. U16720-3.5 Mitsubishi 4B11 – 3/8” Bolts
    5.906 / 150mm   1.890 / 45mm  670 g. U16730 Mitsubishi 4G63 – 7/16” Bolts
    6.024 / 153mm   1.890 / 45mm  679 g. U16740 Mitsubishi 4G63 – 3/8” Bolts
    6.142 / 156mm   1.890 / 45mm  680 g. U16750 Mitsubishi 4G63 – 7/16” Bolts
  • « Back to Catalog

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