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

The Wiseco LS 4.030 Dome Piston Set is designed for builders and enthusiasts focused on high-compression LS engine builds, especially those aiming for significant boost or nitrous applications. These precision-forged pistons provide the durability and compression ratio control required for forced-induction platforms where stock components may not suffice.

Featuring an 11cc dome volume, this piston set raises the effective compression ratio compared to flat or shallow-dish designs while ensuring structural integrity under sustained boost pressure. The 4.030-inch bore diameter aligns with late-generation LS platform specifications, and the symmetrical dome profile enhances combustion chamber efficiency and minimizes quench distance when paired with compatible cylinder head geometry.

Ideal for LS1, LS2, LS3, and LS9 short-block applications, this piston set is particularly beneficial for those requiring overbore clearance or stroker geometry. The precision forging and thermal treatment guarantee minimal growth under extreme cylinder temperatures, which is crucial for tuning aggressive ignition timing or using ethanol blends that necessitate consistent piston-to-valve clearance and ring seal.