LS 408CI Stroker Short Block -29cc Dish Pistons 24 T Boost/NOS

This short block is built for engines that are going to be running Boost or Nitrous. It has upgraded ARP main studs, ARP 2000 rod bolts and Total Seal CS AP ring package with Steel rings gapped accordingly for engines pushing 10+ PSI. Due to so many variables, we do not rate these for Power or Boost limits.

  • Block: GM 6.0L Iron LQ4
  • Bore/Stroke: 4.030 x 4.000
  • Displacement: 408 C.I.D.
  • Crankshaft: Manley 4340 Forged 4.000" Stroker Internally Balanced 24 Tooth
  • Connecting Rods: Manley 4340 Forged H Beam 6.125" ARP 2000 Bolts
  • Pistons: 2618 Forged +29cc Dished
  • Piston Rings: Total Seal CS AP Steel Top Ring
  • Compression Ratio: 64cc=9.2:1/66cc=9.0:1/70cc=8.7:1
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Freeze Plugs: Brass Installed & Sealed
  • Oil Galley Plugs: Installed & Sealed
  • Weight:285

Contact Southeast Performance for your application and pricing.


Contact Southeast Performance

  • +1(813)886-6166
  • +1(813)503-8069
  • Tampa, FL 33607
  • Email Us

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