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High-performance 4032 forged alloy pistons engineered for street and race applications. KB PISTONS Forged Alloy Pistons are crafted from 4032 alloy with 11% silicon, forged under high pressure and fully machined for precise fit and durability.
These pistons deliver reliable performance where strength and longevity matter. The combination of 4032 chemistry and forging process provides a balance of toughness, thermal control, and dimensional stability — making them a top choice for builders upgrading engines for boosted or nitrous-assisted power.
Applications: Street performance, track racing, forced-induction engines, and high-output rebuilds.

