LS 4.030 Dome Piston Set -11cc 1/16 1/16 3.0

The Wiseco LS 4.030 Dome Piston Set is a precision-forged piston kit engineered for GM LS-series Gen III engine builds where compression ratio control and reliable ring seal are critical. This -11cc dome configuration is designed for builders prioritizing stock-stroke geometry while managing compression in naturally aspirated or moderately boosted applications. Each piston in the set features a 4.030-inch bore diameter and dome-profile top to optimize combustion chamber design and valve clearance in LS platforms.

Wiseco's forged construction delivers the thermal and mechanical properties required for sustained high-RPM operation. The ring groove configuration—1.2 x 1.2 x 3.0 mm—accommodates standard LS-series ring packages and maintains consistent gas sealing across the power band. The -11cc dome reduces compression ratio when paired with matching cylinder heads, a specification critical for tuners working with pump fuel or targeting specific knock margins in forced-induction setups. Complete piston sets streamline engine assembly and ensure matched geometry across all cylinders for balanced performance and longevity.

This kit suits engine builders, performance shops, and LS engine enthusiasts rebuilding or upgrading stock and modified blocks. Whether for street performance, track duty, or engine refresh with controlled compression requirements, the Wiseco LS 4.030 Dome Piston Set provides verified fitment and durability across diverse LS platforms. Proper installation requires matching connecting rods, correct ring end gap, and precise honing to specification.

LS-series engine platforms have become the standard for both OEM and performance applications across multiple vehicle classes. Piston selection is fundamental to reliability and compression management. Wiseco's brand positioning in the forged piston market reflects decades of motorsport and street-engine development, making this set a recognized choice among LS builders seeking repeatable results.