Manley H-Beam 642g Rods ARP 8740 03-up Mopar Gen III Hemi


Manley steel H-beam connecting rods are made from forged 4340 steel alloy. They're packed full of performance features, such as a compact uniform-grain structure for ultimate strength, full machining, stress relieving, and magnafluxing. The wrist pin and big end bores are honed to a +/-.0002 in. tolerance, and the wrist pins get a bronze alloy bushing. These units include cap screw ARP 8740 alloy rod bolts, and each rod set is weight-matched to within 2 grams.

  • Connecting Rod Length Center to Center (in): 6.125 in.
  • Connecting Rod Beam Style: H-beam
  • Connecting Rod Material: Forged 4340 steel
  • Connecting Rod Finish: shot-peened
  • Wrist Pin Style: Floating
  • Clearanced for Stroker: Yes
  • Cap Retention Style: Cap screw
  • Connecting Rod Bolt Brand: ARP
  • Connecting Rod Bolt Diameter: 7/16 in.
  • Connecting Rod Bolt Material: 8740 chromoly steel
  • Fastener Yield Strength (psi): 160,000 psi
  • Connecting Rod Bolt Head Style: 12-point
  • Approximate Connecting Rod Weight (g):642
  • Big End Bore Diameter (in): 2.1250 in.
  • Big End Width: 0.941 in.
  • Pin End Bore Diameter: 0.928 in.
  • Pin End Width (in): 1.060 in.
  • Advertised Horsepower Rating: 725 hp
  • Weight Matched Set: Yes
  • Magnafluxed: Yes
  • Sold as a set of 8.

    Notes: Custom pistons are required when using connecting rods with any length other than OE length

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    • Model: Manley 14056-8 Connecting Rods
    • Shipping Cost: 10.95lbs
    • 1 Units in Stock
    • Manufactured by: Manley Performance

    This product was added to our catalog on Monday 28 May, 2018.

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