Seller notes

KMJ H631CP40-1KIT Speed Pro Hypereutectic Pistons w/ Cast Rings Kit Small Block Chevy 350 Size: 040 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 ...

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