SBC Dished Piston Set 4.165 Bore -26.8ccc

The JE PISTONS SBC Dished Piston Set 4.165 Bore -26.8cc is a forged piston set engineered for small-block Chevy engine builds requiring precise compression control and reliable high-RPM performance. This complete set of eight pistons delivers the mechanical consistency and durability demanded by serious engine builders, street performance enthusiasts, and race teams focused on maximizing power output while maintaining longevity in demanding operating conditions.

Each piston features a 4.165-inch bore diameter with a dished crown geometry that delivers a compression ratio of -26.80 cubic centimeters. The forged construction provides superior strength and fatigue resistance compared to cast alternatives, critical for engines routinely subjected to extended high-load or high-RPM operation. The 1/16 x 1/16 x 3/16-inch ring groove configuration supports standard small-block Chevy ring packages and ensures proper ring seal and blow-by control across the engine's operating range. Precision-forged pistons like these maintain tighter tolerances under thermal cycling, reducing skirt wear and extending engine life in both street and track applications.

These pistons are essential for builders balancing compression requirements with power goals in small-block Chevy applications, from classic hot rods and street machines to modern performance builds. The dished crown design suits combinations requiring lower compression ratios—such as engines running boost, nitrous oxide, or pump fuel in high-performance street trim. The JE PISTONS brand reputation for quality manufacturing and dimensional accuracy makes this set a trusted choice for engine builders who demand precision components that perform consistently across thousands of operating hours.