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Sealed Power H345DCP

DDP Piston 350 SB-Chevy Flat Top Piston 4 Valve Reliefs

Sealed Power H345DCP


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Sealed Power H345DCP DDP Piston 350 SB-Chevy Flat Top Piston 4 Valve Reliefs $13.99
DDP Piston
  • 350 SB-Chevy Flat Top Piston 4 Valve Reliefs
  • Dome Volume -6.88
  • Press or Floating Pin Design
  • 676 Grams
  • 5/64-5/64-3/16 Ring lands
  • 9.35:1 w/64cc
  • 4.000 Bore
  • Each

  • Sealed Power H345DCP Details

    Small Block Chevy

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


    Bore (in.)
    Pin Diameter (in.)
    Piston Material
    Hypereutectic aluminum
    Piston Style
    Flat top, with four valve reliefs
    Sold as a set of 8
    Wrist Pin Style
    Piston Ring Thickness (in.)
    5/64 x 5/64 x 3/16
    Bore (mm)
    Compression Distance (in.)
    Piston Head Volume (cc)
    Manufacturer's Part Number:

    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

    Do pins come with pistons, as in photos? What is weight of pin? What is weight of piston (bare)? What is length of pin?

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