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Speed-Pro Hypereutectic Pistons
Pistons, Hypereutectic, Dish, 4.040 in. Bore, Chevy, Set of 8
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Estimated Ship Date: Nov 4, 2026 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
H859CP40
Part Type:
Product Line:
Summit Racing Part Number:
SLP-H859CP40
UPC:
614046372696
Piston Rings Included:
No
Bore (in.):
4.040 in.
Bore (mm):
102.616mm
Stroke:
3.750 in.
Engine Stroke Type:
Stroked
Rod Length:
5.700 in.
Piston Style:
Dish, with two valve reliefs
Piston Material:
Hypereutectic aluminum
Compression Height (in.):
1.425 in.
Piston Head Volume (cc):
+12.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
No
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
5/64 in. x 5/64 in. x 3/16 in.
File Fit:
No
Gapless:
No
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
DurOshield® coated piston skirt.
Speed-Pro Hypereutectic Pistons
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.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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