Engine Kits

Sealed Power Hypereutectic Flat Top 4 Valve Reliefs Piston +.030 Over
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Sealed Power Pistons

Sealed Power Hypereutectic Flat Top 4 Valve Reliefs Piston +.030 Over



Part #: H345DCP30
List Price: $191.84
Our Price: $95.92
You Save: $95.92

Availability: In Stock



350 BASED eng. +.030 over sized  (4.000 bore x 3.480 Stroke) Float or press pin, coated skirt. Pistons sold in sets of 8,  Do not use in a 4.3L

Sealed Power® DD P™ Pistons
Sealed Power® Digital Diamond Profiled™ Pistons are perfect for engine builders looking for ways to build a cleaner-burning, longer-lasting vintage Chevy SB engine. This advanced piston technology lets rebuilders equip this popular engine with the ultimate in modern piston materials and engineering – while still keeping that classic engine “classic.” Sealed Power

DDP Pistons feature:

  • DDP™ Technology: Digital actuated diamond turning process produces precision skirt profiles.
  • Barrel profile: Creates an oil wedge between the skirt and cylinder wall.
  • Thermal Arching Compensation™ (TAC) Ring Groove Geometry: Machined uptilt offsets thermal “arching” distortion; squares the ring face to the cylinder.
  • Next generation DUROSHIELD® coating: Reduces friction and wear.
  • Precision-machined pin bores: Accommodate fixed or floating wrist pin installation.

Ring dimensions 5/64, 5/64, 3/16
Flat Top; 4 valve reliefs
Compression dist 1.560
Deck Clearance .025
Skirt Clearance .0010

Compression ratio by CYL head CC

Part
number

CID

58.0cc

64.cc

68.cc

72.cc

76.cc

H345DCP

350

9.85

9.24

8.88

8.55

8.24

H345DCP20

353

9.93

9.31

8.95

8.61

8.31

H345DCP30

355

9.97

9.35

8.99

8.65

8.34

H345DCP40

357

10.01

9.39

9.02

8.68

8.37

H345DCP60

361

10.09

9.46

9.09

8.75

8.44


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