Wiseco

K2769

Wiseco K2769 4.250 Bore 10.5:1 Compression Ratio Domed Forged Piston Kit

Pistons

Fits: All Harley-Davidson Twin Cam engines 1999-2013
113 cubic inch (1860 cubic capacity) big bore kit includes 10.5:1 compression ratio domed pistons, rings, circlips, chrome piston pins
Big bore cylinders required, crankcase boring required, compatible with Screamin' Eagle cylinder heads (starting in 2011)
Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore
Utilizes the new ArmorGlide skirt coating, the ultimate in toughness, lubrication, and bond technology working together to minimize friction, maximize horsepower, providing improved wear resistance

Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore. Each Wiseco piston is designed with the proper installed clearance to produce the most power, least wear, and best seal at running temperature, for each application. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. 10.5:1 compression ratio domed piston. Big bore cylinders required. Crankcase boring required. Compatible with Screamin Eagle cylinder heads (starting in 2011). Includes: Forged pistons, rings, circlips, chrome piston pins. Total displacement: 1860 cubic capacity; cylinder bore: 4.250 inch; stroke: 4.000 inch.

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