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Sealed Power H423DCP30

DDP Piston 350 SB-Chevy Dish Top Piston

Sealed Power H423DCP30

844-H423DCP30

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Sealed Power H423DCP30 DDP Piston 350 SB-Chevy Dish Top Piston $11.99
DDP Piston
  • 350 SB-Chevy Dish Top Piston
  • 4 Valve Reliefs
  • Dome Volume -.098
  • Press or Floating Pin Design
  • 661Grams
  • 5/64-5/64-3/16 Ring lands
  • 8.5:1 w/76cc
  • 5.7 Rod
  • 4.030 Bore
  • 3.480 Stroke
  • Each

  • Sealed Power H423DCP30 Details

    Small Block Chevy

    Note: For floating pin applications, lock ring number 844-LR63 must be purchased separately, 2 required for each piston.

    Digital Diamond Profile (DDP) Technology is a digital actuated diamond turning process that produce precision skirt profiles. The barrel profile of the DDP piston promotes an oil wedge between the skirt and cylinder wall.

    DDP pistons also feature Thermal Arching Compensation (TAC) ring groove geometry. Ring grooves machined with an uptilt to offset thermal "arching" distortion. Uptilt squares the ring face to the cylinder for increased power and decreased oil consumption.

    Speed Pro's next generation Duroshield skirt coating is also added to reduce friction across entire RPM range. Increased wear resistance for long life and superior NVH (noise, vibration, and harshness) reduction.

    Precision machined pin bores allow fixed or floating wrist pin installation. Piston/pin assemblies are weight matched to 4 gram (+/- 2 gram) maximum variation within every engine set.


    Click on piston highlight below for more details on the features of Digital Diamond Pistons

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