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Speed-Pro Hypereutectic Pistons H426CP30 Pistons, Hypereutectic, Dome, 4.280 in. Bore, Chevy, Set of 8

SKU: SLPH426CP30

Pistons

Speed-Pro Hypereutectic Pistons H426CP30 Pistons, Hypereutectic, Dome, 4.280 in. Bore, Chevy, Set of 8

SKU: SLPH426CP30

Pistons

Sale ends in Calculating...

A$985.33 A$1,059.95
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

If you're looking for pistons with an unbeatable combination of performance and value, then Speed-Pro hypereutectic pistons are for you. These pistons are manufactured from aluminum alloy that contains 16 percent silicon for greater strength and wear resistance. They're also molded in the latest permanent-mold technology to ensure the precise fit and tight bore clearances that today's top engine builders demand. Hypereutectic pistons are ideal for use in high performance street, bracket, and oval track racing—and will work perfectly with normal ring end gaps. Choose the model designed for your vehicle and engine application.

Part Type

Cast Piston

Data: v4.2 - Upd: 2026-10-14 04:28:18

Specifications

Product Attributes - Brand
Sealed Power
Product Attributes - Manufacturer's Part Number
H426CP30
Product Attributes - Part Type
Pistons
Product Attributes - Product Line
Speed-Pro Hypereutectic Pistons
Product Attributes - UPC
614046227521
Product Attributes - Piston Rings Included
No
Product Attributes - Bore (in.)
4.280 in.
Product Attributes - Bore (mm)
108.712mm
Product Attributes - Stroke
4.000 in.
Product Attributes - Engine Stroke Type
Stock
Product Attributes - Rod Length
6.135 in.
Product Attributes - Piston Style
Dome, with two valve reliefs
Product Attributes - Piston Material
Hypereutectic aluminum
Product Attributes - Compression Height (in.)
1.640 in.
Product Attributes - Dome Height (in.)
0.100 in.
Product Attributes - Piston Head Volume (cc)
-10.50cc
Product Attributes - Wrist Pin Style
Press-fit or floating
Product Attributes - Wrist Pin Retainers Included
Yes
Product Attributes - Wrist Pin Included
Yes
Product Attributes - Pin Diameter (in.)
0.989 in.
Product Attributes - Piston Ring Thickness
5/64 in. x 5/64 in. x 3/16 in.
Product Attributes - File Fit
No
Product Attributes - Gapless
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 8.
Product Attributes - Notes
DurOshield® coated piston skirt.

Reference Information

Brand Name/s Sealed Power
StreetFX SKU slpH426CP30
SFX Item ID 5028962
Supplier Item Code 5028962
Manufacturer SKU H426CP30
Manufacturer UPC 614046227521
Alternative References SEAH426CP30

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
  • MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine FamilyChevy big block Gen V
    Engine Size7.4L/454
  • MakeCHEVROLET
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454

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