Wiseco 6447RXS Forged Piston Chevy LS Series 12cc Dome Shelf Stock Single

The Wiseco 6447RXS is a shelf-stock, single forged piston engineered for Chevrolet LS Series engines. Featuring a +12cc dome crown and a 1.300" compression height, this piston is designed for high-compression LS builds using the standard 3.622" stroke with a 6.125" connecting rod and the common 0.927" wrist pin diameter. The dome profile is optimized for maximum combustion chamber efficiency, supporting compression ratios from approximately 12.0:1 to 12.9:1 depending on chamber volume.

Key Features:

• Forged 2618 high-strength aluminum ? engineered, forged, and machined in the USA for superior tensile strength and impact resistance
• +12cc dome crown ? promotes high compression ratios ideal for naturally aspirated performance builds
• 1.300" compression height with 0.927" pin diameter ? designed for use with aftermarket connecting rods
• ArmorGlide? skirt coating ? reduces operating friction, improves wear resistance, and allows tighter bore clearances for quieter operation
• Precision ring grooves with anti-detonation groove and pressure seal features for improved ring seal performance
• Forced pin oiling ? maintains wrist pin lubrication under extreme load conditions
• Strutted skirt design ? engineered for strength with minimal piston rock and optimized ring seal
• Radiused valve pockets ? allow oversized valves and high-lift camshafts to be utilized
• Shelf stock single piston ? sold individually for replacement or custom builds

Compatible with the GFX 1.2mm / 1.2mm / 3.0mm steel top / Napier 2nd ring set (sold separately or included with full kits). Wiseco recommends a pin upgrade to P/N S718 for applications exceeding 700 horsepower. Sold as a single piston without rings.