Wiseco K680M955AP Forged Piston Kit Nissan VR38DETT 3.8L 24V V6 Stroker 95.5mm

The Wiseco K680M955AP is a forged piston kit engineered for the Nissan VR38DETT 3.8L 24V V6 engine in stroker applications. Featuring a 1.232-inch (31.3mm) compression height, these pistons are purpose-built to accommodate a stroked crankshaft and longer connecting rods, making them ideal for high-displacement, high-power builds.

Key Features:

• Bore: 95.50mm / 3.760 in. (Standard bore)
• Compression Height: 1.232 in. (31.3mm) — stroker-specific design
• Compression Ratio: 9.5:1
• Dish Volume: -6.3cc
• Stroke: 94.4mm / 3.717 in.
• Rod Length: 165mm / 6.496 in.
• Head Volume: 64.2cc
• Gasket Thickness: 0.030 in. (0.76mm)
• Deck Clearance: 0.020 in. (0.50mm)
• Block Height: 9.606 in. (244mm)
• HD2 Asymmetric Skirt Design for optimized oil control and reduced friction
• Gas Ported crown for improved ring seal under high-boost conditions
• Includes: Pin Part #S790 — 23mm tool steel wrist pins with 0.225-inch wall thickness
• Ring Set Included: 9550XX
• Average Weight: 432g per piston

Wiseco forges and machines all pistons in-house in the USA using 2618 aluminum alloy, delivering superior tensile strength and heat resistance for forced-induction and high-compression race applications. The kit is a direct complement to stroker crankshaft and long-rod builds targeting increased displacement and maximum power output from the VR38DETT platform.