KB PISTONS
KB PISTONS 1986-1990 Harley-Davidson FLST Heritage Softail FORGED ALLOY PISTONS
KB PISTONS 1986-1990 Harley-Davidson FLST Heritage Softail FORGED ALLOY PISTONS KB920.STD. The vendor part number is KB920.STD.. Read title careful to know what you are getting. Catalog decription…
KB forged pistons are made from 4032 forged alloy with an 11% silicon content, formed in a forging press and then fully machined. Due to the material and manufacturing process these pistons have superior crack resistance under detonation or pre-ignition. They are suited for Street or Race applications with power adders such as NOS or boost. All Twin Cam and Sportster application feature coated skirts. Replacement rings are special order, please call for pricing.
