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  • Engine Packages
    • 4.6 Stroker Jeep/AMC "300HP" Engine Package
    • 4.6 Stroker Jeep/AMC "Torque Monster" Engine Package
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  • Newcomer Racing Parts
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      • 4.0/4.2 Lightweight Roller Rocker Arm Kits(1.6/1.7/Fixed/Adjustable).
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  • AMC/Jeep Stroker 4.2 258 3.895" 12CW Crank Fully Balanced w/Bearings

AMC/Jeep Stroker 4.2 258 3.895" 12CW Crank Fully Balanced w/Bearings

SKU: NR-054
$995.00
$995.00
Unavailable
per item

We are offering up some of our best fully counterweighted 258 cranks, which have been totally refurbished and balanced with in +/- .5 gram. If your looking for the strongest, smoothest, best performing crank then you found the right place. We have made well north of 800HP and 8,000rpm's(W/ATI balancer). These come with matching King rod and main bearings.

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  • Home
  • Engine Packages
    • 4.6 Stroker Jeep/AMC "300HP" Engine Package
    • 4.6 Stroker Jeep/AMC "Torque Monster" Engine Package
    • 4.6 Stroker Jeep/AMC "High Octane" Engine Package
    • 4.8 Jeep/AMC Stroker "Mega Torquer"
  • Newcomer Racing Parts
    • Power Items
      • Billet Roller Cam Kits
      • 4.8 Stroker Piston/Ring Kit
      • AMC/JEEP Stroker 3.895" 12cw Crank
      • 4.0/4.2 Lightweight Roller Rocker Arm Kits(1.6/1.7/Fixed/Adjustable).
      • Billet Valve Cover Spacer Kit
      • Billet Valve Cover Retainers
      • Billet Thermostat Housing
      • Jeep 4.0 CNC Competition Head
      • Jeep 4.0 Competition Head
      • "300HP" Head Package
      • ARP Int/Exh SS Winged Washer Bolt Kit
      • ARP Int/Exh SS Winged Washer Stud Kit
      • Copper Intake/Exhaust Gasket
      • BUNDLE PACKAGE
      • Block-off Plate
      • Billet 1/2" Aluminum 4.0 Jeep Intake Flanges
      • 1/2" 304 Stainless Steel Revised Header Flange
      • American Racing Jeep 4.0 Headers
      • 70mm "Wide mouth" Throttle Body
      • Port Matched 70mm 4.0 Jeep Intake Manifolds
      • Port Matched Intake & Throttle Body Package
      • Sheet Metal Plenum Intake
      • ATI 4.0/4.2 Jeep AMC Damper Kit
      • Billet Crank Spacer
      • Engine Lift Bracket
      • Racing T-shirts
  • Random New/Used Parts Page
  • Decals & Apparel
    • "Record Breaker" T-shirts
    • Decals
    • Hats
  • Pulsar Turbos
  • 2025 Sponsors
  • Warranty
  • Contact Us
  • Happy Customers
  • History