Wiseco

K1750

Wiseco K1750 3.625 Bore 9.25:1 Compression Ratio Flat Top Forged Piston Kit

Pistons

Fits: All Harley-Davidson Evo Big Twin engines 1984-1999
88 cubic inch (1438 cubic capacity) big bore kit includes 9.25:1 compression ratio flat top pistons, rings, circlips, chrome piston pins
Must use big bore aftermarket cylinders and cases must be bored to accept big bore cylinders
Must use aftermarket engine case on models 1990 thru 1995
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

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. 9.25:1 compression ratio flat top piston. Cases must be bored to accept big bore cylinders. Must use big bore aftermarket cylinders. Must use aftermarket engine case on models 1990 thru 1995. Includes: Forged pistons, rings, circlips, chrome piston pins. Total displacement: 1438 cubic capacity; cylinder bore: 3.625 inch; stroke: 4.250 inch.

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