Wiseco K0400X1 Forged Piston Kit 4.100in Bore for Hellcat/Demon 6.2L

Vehicle Fitment

• Chrysler 6.2L 3rd Gen Hemi (Hellcat/Demon) - bore/stroke/rod specific, not vehicle-specific

Fitment Notes

• High-performance drop-in replacement - designed for boost or nitrous applications
• Confirm your exact stroke and rod length match before ordering

Features

• ArmorGlide skirt coating reduces friction and improves wear resistance
• 2618 high-strength forged alloy construction for boost/nitrous durability
• Anti-detonation and pressure seal grooves improve ring seal
• DLC-coated wrist pin reduces friction at the pin bore
• Strutted skirt design for consistent thermal expansion under load
• Includes premium ring package matched to the piston

Specifications

• Bore: 4.100"
• Stroke: 3.580"
• Rod length: 6.200"
• Compression height: 1.280"
• Dish volume: -3.5cc
• Compression ratio (at 74.2cc chamber): 9.7:1
• Wrist pin: DLC-coated, .945" x 2.250"
• Ring set: 1.2mm / 1.2mm / 2.0mm

Included Components

• 8x Forged Dished Pistons
• DLC-Coated Wrist Pins
• Premium Ring Set (4100VM)

Product Description

The Wiseco K0400X1 is a forged drop-in replacement piston built specifically for the 6.2L 3rd Gen Hemi found in Hellcat and Demon applications, engineered to handle serious boost or nitrous without giving up street manners. The -3.5cc dish and 9.7:1 compression ratio at a 74.2cc chamber keep things safe under forced induction, while ArmorGlide skirt coating cuts friction and lets the piston run a tighter fit than an uncoated alternative.

Anti-detonation and pressure seal grooves improve ring seal and reduce piston rock noise, and the DLC-coated wrist pin adds another layer of friction reduction at a high-load contact point. It's a strong choice for Hellcat/Demon owners pushing serious power who need a stock-displacement piston that can actually hold up to it.