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Speed-Pro Hypereutectic Pistons
Pistons, Hypereutectic, Chevy, GMC, 6.0L, Set of 8
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Estimated Ship Date: Nov 12, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
H1129CPA100M
Part Type:
Product Line:
Summit Racing Part Number:
SLP-H1129CPA100M
UPC:
00019826085856
Piston Rings Included:
No
Bore (in.):
4.040 in.
Bore (mm):
102.600mm
Stroke:
3.622 in.
Engine Stroke Type:
Stock
Rod Length:
6.098 in.
Piston Style:
Flat top, with no valve reliefs
Piston Material:
Hypereutectic aluminum
Compression Height (in.):
1.325 in.
Wrist Pin Style:
Press-fit
Wrist Pin Retainers Included:
No
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.945 in.
Piston Ring Thickness:
1.50mm x 1.50mm x 3.00mm
File Fit:
No
Gapless:
No
Remanufactured:
No
Quantity:
Sold as a set of 8.
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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