KB Performance Motorcycle® - Flat Top Piston Kit

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Vehicle Fitment

MakeModelYear
Harley DavidsonBad Boy 1995-1997
Dyna Convertible 1994-1999
Dyna Glide Daytona 1992
Dyna Glide Sturgis 1991
Dyna Low Rider 1993-1999
Dyna Super Glide 1995-1999
Dyna Wide Glide 1993-1999
Electra Glide Classic 1984-1999
Electra Glide Sport 1984, 1987-1993
Electra Glide Standard 1986-1987, 1995-1999
Electra Glide Ultra Classic 1989-1999
Fat Boy 1990-1999
FLHRI Road King 1998-1999
FXR2 1999
FXR3 1999
FXRS-Conv Low Rider Sport Convertible 1989
Heritage Softail 1986-1990
Heritage Softail Classic 1988-1999
Heritage Softail Nostalgia 1993
Heritage Softail Special 1994-1996
Heritage Springer 1997-1999
Low Glide 1984-1992
Low Rider - Belt 1984-1985
Low Rider Chrome 1985, 1987
Low Rider Custom 1987-1994
Low Rider Sport 1986-1993
Low Rider Sport Convertible 1990-1993
Night Train 1999
Road Glide 1998-1999
Road King 1994-1999
Road King Classic 1998-1999
Softail Custom 1986-1999
Softail Standard 1984-1990, 1999
Sport Glide 1984-1992
Sport Glide Grand Touring 1986
Springer Softail 1988-1999
Super Glide Custom 1992
Super Glide II 1986-1994
Tour Glide Classic 1984-1991
Tour Glide Ultra Classic 1989-1996
Wide Glide 1984-1986

Product Details

Flat Top Piston Kit (KB919C.005) by KB Performance Motorcycle®. Hypereutectic Alloy is a cast 16% high silicon content material that has very high thermal barrier properties along with a low thermal expansion rate. This alloy is perfectly suited for an air-cooled engine. Tight piston-tocylinder clearances are used to achieve better ring seal and a quiet running engine. Hypereutectics are best suited for Street Bikes using stock or mild compression ratios to 10.5:1 running on pump fuel. With the high silicon content, these pistons will resist skirt wear the best. Models that end in a "C" come with Anti-Friction skirt coating.

Specifications

Alloy: 4032
Bore Standard: 3.498"
Bore Standard: 88.8 mm
Comp. Ht.: 1.375"
Compression Ratio: 8.5:1 with 80cc
Crown: +2.1cc
Crown Type: Flat Top
Engine Disp Liters: 1340
Engine Disp: 80"
Exhaust Valve Depth/Diameter: 0.131-1.740
Intake Valve Depth/Diameter: 0.151-2.080
Lock: RRN-81
Pin Diameter: 0.792"
Pin Diameter: 20.1 mm
Pin No: 0792x216K
Pin Type: Floating
Ring Set #: 2M6127
Ring Sizes: 2-1/16, 1-3/16
Rod: 7.440"
Rod: 189 mm
Stroke: 4.250"
Stroke: 108.0 mm
Top Land: 0.250
Weight: 365/97

Features

  • Expertly crafted from the highest grade materials
  • Built for long-lasting dependability and unmatched quality
  • Made with great care and extreme attention to detail

Installation

KB Performance® has carved out a niche for itself in the motorcycle industry by offering state-of-the-art high-performance pistons for Harley-Davidson and Indian bikes. Ideal for racing junkies, die-hard motocross riders and speed adrenaline fans, competition-grade KB Performance pistons are built with premium, high-strength Hypereutectic 390 alloy and Forged 4032 low expansion alloy to give you rock-solid durability and hardcore performance under the vigorous conditions of high revving speed conditions. KB Performance piston lineup goes the extra mile when it comes to incomparable reliability and terrific value. Advanced V-Twin performance piston technology married with the latest manufacturing techniques and rigorous quality standards put KB Performance products head and shoulders above the rest. They feature offset wrist pins to make your hog’s inner beast quieter and most pistons have coated skirts. KB Performance Low expansion alloy pistons will come in handy if you want a tighter piston to wall running clearance. With dependable KB Performance pistons, you can dress up your high performance beast to leave the competition in the dust!

Part Number:
KB919C.005
UPC:
800745155245
Alternate MPN:
KB919C005

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KB Performance Motorcycle® - Flat Top Piston Kit
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