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Sealed Power ZH345ACP - Speed-Pro Digital Diamond Profile (DDP) Hypereutectic Pistons

  • Piston, Flat, Hypereutectic, 4.000 in. Bore, Chevy, Each
  • Application Specific
  • Estimated Ship Date: 5/29/2012
 
BrandSealed Power
Manufacturer's Part NumberZH345ACP
Part TypePistons
Product LineSpeed-Pro Digital Diamond Profile (DDP) Hypereutectic Pistons
Summit Racing Part NumberSLP-H345ACP
 
Bore (in)4.000 in.
Bore (mm)101.600mm
Piston StyleFlat top, with four valve reliefs
Piston MaterialHypereutectic aluminum
Compression Distance (in)1.548 in.
Piston Head Volume (cc)+5.00cc
Wrist Pin StylePress-fit
Pin Diameter (in)0.928 in.
Piston Ring Thickness5/64 in. x 5/64 in. x 3/16 in.
QuantitySold individually.
NotesDurOshield® coated piston skirt. These pistons can be free floated but locks must be purchased separately.
CalculatorCompression Calculator
ToolStroker Combinations
 

These Speed-Pro Digital Diamond Profile (DDP) hypereutectic pistons feature a new digital actuated diamond turning process that produces precision skirt profiles. This new Digital Diamond Profile (DDP) technology creates a unique barrel profile of the pistons, promoting an oil wedge between the piston skirt and the cylinder wall. They feature a newly designed ring groove geometry using Thermal Arching Compensation (TAC) that machines the piston ring grooves with an uptilt to offset thermal arching distortion. This squares the ring face up to the cylinder wall for increased power and decreased oil consumption. The Speed-Pro Digital Diamond Profile hypereutectic pistons feature the next generation of Duroshield skirt coating, reducing friction across the entire rpm range and increasing wear resistance for longer life and superior noise and vibration reduction. They also use precision-machined piston pin bores that allow for either fixed or floating wrist pins. The pistons come weight-matched to a 4 gram (+/-2 grams) maximum variation within every engine set.

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