KMJ H860CP30-1KIT

Speed Pro Hypereutectic Pistons w/ Cast Rings Kit

Small Block Chevy 383

Size: 030

Rod Length: 5.7"

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 FM244 aluminum alloy, which 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. They're ideal for use in high performance street, bracket racing, and oval track racing and will work perfectly with normal ring end gaps.

We've included a matching set of high performance cast rings to get your project rolling without the guesswork! You can count on KMJ Performance to get the most power out of your engine block!

Brand Speed Pro

Part Number H860CP30

Bore 4.030"

Piston Style Flat Top with Two Valve Reliefs

Piston Material Hypereutectic Aluminum

Compression Distance 1.425"

Piston Head Volume + 5.00 cc

Wrist Pin Style Press-Fit or Floating

Pin Diameter 0.928"

Piston Ring Thickness 5/64" x 5/64" x 3/16"

Compression Ratios w/ Stock Deck Height (9.025"):

58cc

64cc

68cc

72cc

76cc

11.24

10.50

10.06

9.61

9.29

KMJ PERFORMANCE

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Speed Pro H860CP30 Chevy 383 Flat Top Pistons + Cast Rings Kit 030 SBC 383