Wiseco Pistons 6650M87AP Sport Compact Forged Piston Kit Honda K-Series 87mm ArmorGlide

The Wiseco 6650M87AP (K650M87AP) is a high-performance forged piston kit engineered specifically for Honda K-Series engines. This complete piston set features an 87mm bore size with a compression ratio of 12.4:1, designed to deliver maximum power and durability in demanding applications.

Key Features:

• Constructed from 2618 aluminum alloy for superior weight-to-strength ratio
• ArmorGlide skirt coating minimizes friction, maximizes horsepower, and provides improved wear resistance
• Allows tighter piston fitment within the bore for better ring seal and reduced piston noise
• +10.5cc dome design with 1.181 inch (30mm) compression height
• Features specially designed valve pockets, complex dome shapes, steel nitride/napier rings, and optimized skirt profiles
• Engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio facility

Technical Specifications:

• Bore: 87.00mm (3.425 inches)
• Pin diameter: 22mm, Compression height: 30mm
• Average piston weight: 331 grams
• Includes S550 22mm wrist pins and 8700XX ring set

This kit includes pistons, rings, wrist pins, and circlips for a complete installation. Wiseco is a world leader in manufacturing high-performance forged pistons with over 80 years of racing heritage, making their products the choice of professional racers and serious enthusiasts.