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Bore Size
4.090 (Stock)
4.100 (.010 Over)
4.125 (.035 Over)
Stroke / Rod Length
3.724 (Stock / 6.200)
4.050 / 6.125 (426 Stroker) (add $100)
4.200 / 6.125 (448 Stroker) (add $150)
Ring Package
Standard Moly Ring Pack
Steel Ring Package (Forced Induction, Nitrous) (add $130)
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Diamond Racing 6.4L HEMI Pistons

Modern Mopar Hemi STREET/STRIP - 6.4L HEMI Block

Diamond Racing has been working to come up with the one of the best Forged HEMI Pistons available. These are custom designed and machined to perfection. Each set includes Pistons, Rings, Pins, and Locks.  

  • Diamond Racing 6.4L HEMI Forged 2618 Pistons 
  • 3D milling on piston crowns for ready to install finish
  • Inboard forging design for maximum strength
  • Valve pockets designed to work with 6.4L Apache or Big Gas heads
  • Offset pins for quiet operation
  • Top ring down dimensions: .285"
  • Premium 1.5mm x 1.5mm x 3.0mm ring package
  • Premium 8620 .185w wrist pins chamfered for round wire locks included
  • Valve pocket depth: 0.130" intake and sym exhaust
  • Will work with intake valve size of 2.180"
  • 2618 Material for High HP-NOS-Boost applications
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