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.

• Helps improve cylinder sealing for less blow-by
• Retains standard ring gaps in top groove
• DUROSHIELD® skirt-coated piston
• Moly-graphite coating extends engine life
• Reduces friction for higher fuel economy

Bore (in.): 4.030 in.

Bore (mm): 102.362mm

Stroke: 3.400 in.

Engine Stroke Type: Stroked

Rod Length: 5.400 in.

Piston Style: Flat top, with two valve reliefs

Piston Material: Hypereutectic aluminum

Compression Height (in.): 1.090 in.

Piston Head Volume (cc): +5.00cc

Wrist Pin Style: Press-fit or floating