Wiseco VT2766 V-Twin Forged Piston Kit with Gaskets 3.885in Bore 9.5:1 CR Domed

The Wiseco VT2766 is a forged V-twin piston kit designed for big bore builds targeting a 3.885-inch bore with a 9.5:1 compression ratio. Displacing 1554cc (95ci) with a 4.00-inch stroke, this domed piston kit delivers a reliable performance upgrade backed by Wiseco's decades of V-twin-specific engineering. Note: cylinder boring and fuel system recalibration are required for installation.

Kit Contents (VT Kit):

• Piston rings
• Circlips
• Chrome piston pins
• Top-end gasket set

Key Specifications:

• Bore Size: 3.885 in. (.010 in. oversize)
• Displacement: 1554cc (95ci)
• Compression Ratio: 9.5:1
• Stroke: 4.00 in.
• Dome Type: Domed
• Dome Volume: +4.6cc
• Intake Valve Pocket Depth: -0.183 in. | Diameter: 2.000 in.
• Exhaust Valve Pocket Depth: -0.183 in. | Diameter: 2.000 in.
• Skirt: Coated for reduced friction and improved break-in

Wiseco Forged Piston Advantages:

• Forged from aerospace-grade, high-silicon low-expansion aluminum for superior strength and reduced weight
• CNC diamond-turned finish ensures consistent sizing and compatibility with cast iron, chrome, Nikasil, and boron composite cylinder bores
• Forging process compresses material molecules for improved density, impact resistance, and fatigue resistance
• Engineered, forged, and machined in the USA in Mentor, OH
• Arrow-marked crown indicates exhaust-side orientation for correct installation

The 9.5:1 compression ratio makes this kit well-suited for pump gas builds that prioritize easy starting and reliable street performance. Cylinder boring is required prior to installation.