Wiseco 6396RXS Professional Series Chevy LS Forged Piston 4.000 in. Bore -32cc Dish

The Wiseco 6396RXS is a Professional Series shelf-stock forged piston engineered for Chevrolet LS-based engines. Featuring a 4.000 in. bore, 1.1155 in. compression height, 0.927 in. pin diameter, and a -32cc dish crown, this single piston is purpose-built for serious performance builders who demand precision and durability.

Engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio facility, the 6396RXS is constructed from 2618 high-strength aluminum alloy, delivering the tensile strength required for heavy-duty and severe-duty race applications, including forced induction and power adder builds.

Key Features:

• 2618 Aluminum Alloy Construction ? High-strength forging for superior tensile strength and durability under extreme conditions
• ArmorGlide? Skirt Coating ? Reduces operating friction and noise, resists seizure, and extends skirt and cylinder life
• Fully Machined Crown ? Precision-machined -32cc dish for optimized combustion chamber volume and compression ratio tuning
• Precision Ring Grooves ? Machined to tight tolerances for excellent ring seal and long service life
• Anti-Detonation Grooves ? Further atomizes the combustion charge and prevents carbon buildup in the top ring groove
• Radiused Valve Pockets ? Designed for detonation resistance and improved flow around the valves
• Strutted Skirt Design ? Engineered to run at minimal clearance with excellent wear characteristics and reduced piston rock
• Shelf Stock Availability ? Ready to ship individual piston for engine builders sourcing single replacements or custom sets
• Made in the USA ? Engineered and manufactured at Wiseco's Mentor, Ohio facility

The Wiseco 6396RXS is sold as a single piston, making it ideal for builders assembling custom-spec LS engine combinations. Designed and built for racers by racers, this Professional Series piston delivers the performance and reliability required from street/strip builds to all-out competition engines.