If you're looking for pistons with an unbeatable combination of performance and value, then Speed-Pro / Sealed Power 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.

Bore (in.):   4.030 in.
Stroke:  3.480 in.
Engine Stroke Type:  Stock
Rod Length:  5.700 in.
Piston Style:  Dome, with two valve reliefs
Piston Material:  Hypereutectic aluminum
Compression Height (in.):  1.560 in.
Dome Height (in.):  0.275 in.
Piston Head Volume (cc):  -11.80cc
Wrist Pin Style:  Press-fit or floating
Wrist Pin Retainers Included:  Yes
Wrist Pin Included:  Yes
Pin Diameter (in.):  0.928 in.
Piston Ring Thickness:  5/64 in. x 5/64 in. x  3/16 in.

For use w/ press fit rod or floating
.275 Dome height

10.2:1 compression ratio w/ 76cc heads
11.9:1 compression ration w/ 64 cc heads

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