Wiseco Pistons 4999PS Twin Cam 88 Big Bore Piston 9.5:1 Compression

The Wiseco 4999PS forged piston is engineered specifically for Harley-Davidson Twin Cam 88 big bore applications, delivering 9.5:1 compression ratio for improved power and performance. Forged from high-silicon, low-expansion aluminum alloy, this piston offers superior strength while reducing weight compared to cast alternatives, ensuring reliable performance in demanding conditions.

Key Features:

• Forged construction from high-silicon aluminum for maximum strength and durability
• Low-expansion alloy design provides improved heat transfer and longer service life
• Diamond-turned finish from CNC computer-controlled machining ensures precise tolerances
• Compatible with all cylinder bore compositions including cast iron, chrome, nikasil, and boron composite
• 9.5:1 compression ratio optimized for Twin Cam 88 big bore engines
• Designed for both high-performance racing and recreational riding applications

Wiseco's advanced manufacturing process guarantees a perfect finish with no size variation, allowing confident installation in modern cylinder materials. Each piston is manufactured in Wiseco's state-of-the-art computerized facility to meet the exacting standards required by performance enthusiasts and professional racers alike.