Wiseco Chevy LS 4.010in 1.165in CH -17.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for the demands of serious racing and heavy-duty performance builds. The 4.010-inch bore size is a common specification for many Chevrolet LS engine applications, and the 1.165-inch compression height is crucial for achieving the correct deck height and piston-to-valve clearance when paired with specific cylinder heads and crankshafts. This set includes eight pistons, each meticulously machined in the USA.

Wiseco has packed these Professional Series pistons with features aimed at durability and performance. You'll find precision ring grooves designed for optimal seal, anti-detonation grooves to prevent pre-ignition, and forced pin oiling to ensure the wrist pin stays well-lubricated under high stress. The piston crowns are fully machined for a clean combustion chamber surface, and the ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly. These pistons are intended for severe duty applications where reliability is paramount.

When rebuilding your LS engine for high-performance use, consider the materials and design Wiseco has incorporated into this set. The 0.927-inch pin diameter is standard for many LS applications. Remember that this piston set is not CARB approved and cannot be shipped to California. For a successful build, always refer to the manufacturer's detailed installation instructions and ensure all other components, such as rings, connecting rods, and bearings, are compatible and properly installed.