SBC Dished Piston Set 4.165 Bore -16cc

The SBC Dished Piston Set 4.165 Bore -16cc from Sportsman Racing Products is purpose-built for Small Block Chevy engines demanding precision high-performance compression and durability. This complete set of eight forged pistons is engineered for racers, marine engine builders, and performance enthusiasts who require repeatable, reliable combustion geometry across all eight cylinders. Whether you're rebuilding a marine engine for tournament fishing or upgrading a performance boat platform, this piston set delivers the engineering control needed for consistent power delivery and extended engine life.

Each piston features an inverted dome design with a -16cc compression reduction, optimized for controlled detonation and modern fuel blends without sacrificing volumetric efficiency. The forged construction ensures superior strength and heat resistance under sustained high-RPM loads—critical for marine applications where engine bay temperatures and shock loads exceed street-driven conditions. Ring grooves measure 1/16 x 1/16 x 3/16 inches, offering precise ring seal geometry that minimizes blowby and maintains compression consistency across the operating range. The 4.165-inch bore accommodates late-model Small Block Chevy platforms and accepts standard aftermarket connecting rods and rod bolts without modification.

Marine builders and performance boat mechanics rely on matched piston sets like this to ensure cylinder-to-cylinder consistency, reducing vibration and extending bearing life in high-load marine drivetrains. The -16cc dome volume supports moderate boost applications and naturally aspirated configurations, making this set suitable for stock-displacement upgrades as well as mild stroker builds. Installation requires matching with compatible Small Block Chevy connecting rods and careful honing to factory specifications; professional machine work is recommended to verify bore concentricity and ring gap clearance before assembly.