Wiseco K448X05 Professional Series Chevy LS Forged Piston Kit 4.005 in. Bore +5cc Dome

The Wiseco K448X05 is a Professional Series forged piston kit designed for Chevrolet LS-series stroker engine builds. Engineered for serious racers and performance builders, this shelf-stock kit delivers custom-level durability and performance straight out of the box, paired with a premium ring package.

This kit is configured for a 4.005 in. bore with a +5.0cc dome, a 4.000 in. stroke, and a 6.125 in. rod length, making it an ideal choice for high-displacement LS stroker applications. The 1.110 in. compression height and 0.927 in. wrist pin diameter are optimized for the LS platform.

Key Features:

• Professional Series Forged Construction – No-expense-spared design engineered for heavy to severe duty race builds
• 2618 Aluminum Alloy – Forged from high-tensile 2618 aluminum for superior strength in power-adder and high-boost applications
• +5.0cc Dome Design – Helps achieve elevated compression ratios in stroker LS builds
• Dedicated LS Forgings – Specially designed valve pockets, optimized skirt profiles, and precision-machined ring grooves engineered specifically for the LS architecture
• ArmorGlide® Skirt Coating – Reduces operating friction and cylinder wear while enabling quieter operation
• Gas Ports & Advanced Ring Package – Includes premium rings; gas porting improves ring seal for maximum cylinder pressure
• Dome Brushing – Finished dome surface for heat management
• Floating Wrist Pin Design – 0.927 in. diameter wrist pin included (5115 steel material)
• Made in the USA – Engineered, forged, and machined at Wiseco's Mentor, Ohio facility

Specifications:

• Bore: 4.005 in.
• Stroke: 4.000 in.
• Rod Length: 6.125 in.
• Compression Height: 1.110 in.
• Piston Volume: +5.0cc Dome
• Wrist Pin Diameter: 0.927 in.
• Wrist Pin Material: 5115 Steel
• Piston Material: 2618 Aluminum
• Top Compression Ring Thickness: 0.047 in.
• Second Compression Ring Thickness: 0.047 in.
• Oil Ring Thickness: 3.0mm
• Skirt Coating: ArmorGlide®
• Ring Set Included: Yes
• Wrist Pin Included: Yes

The Wiseco K448X05 Professional Series piston kit is purpose-built for high-performance LS stroker applications including drag racing, circle track, and street/strip builds that demand uncompromising reliability under extreme loads.