Engine

KB Performance #KB426C.010 - Piston Kit - 3.750" +0.010" - 10.5:1 CR - 88" Twin Cam

Kit Includes:• 2x Pistons• 2x Wrist Pins• 4x Spiral Lock Pin Clips• 2x Ring SetsFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined pistons are...

KB Performance #KB426C.020 - Piston Kit - 3.750" +0.020" - 10.5:1 CR - 88" Twin Cam

Kit Includes:• 2x Pistons• 2x Wrist Pins• 4x Spiral Lock Pin Clips• 2x Ring SetsFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined pistons are...

KB Performance #KB426C.STD - Piston Kit - 3.750" Standard - 10.5:1 CR - 88" Twin Cam

Kit Includes:• 2x Pistons• 2x Wrist Pins• 4x Spiral Lock Pin Clips• 2x Ring SetsFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer piston and ring lifeDiamond-machined pistons are...

KB Performance #KB542LCA.020 - Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8

Piston Kit - 4.125" +0.020" - 11.0:1 CR - 114"/117" Bored to 120" - M8FeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance; coating then abrades in...

KB Performance #KB542LCA.STD - Piston Kit - 4.125" Standard - 11.0:1 CR - 114"/117" Bored to 120" - M8

Piston Kit - 4.125" Standard - 11.0:1 CR - 114"/117" Bored to 120" - M8FeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance; coating then abrades in on...

KB Performance #KB576LCA.005 - Piston Kit - 4.250" +0.005" - 11.4:1 CR - 124" Big Bore - 107" M8

Piston Kit - 4.250" +0.005" - 11.4:1 CR - 124" Big Bore - 107" M8FeaturesValve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valvesType 3 hard-anodized crown offers corrosion resistance for alcohol-added...

KB Performance #KB576LCA.STD - Piston Kit - 4.250" Standard - 11.4:1 CR - 124" Big Bore - 107" M8

Piston Kit - 4.250" Standard - 11.4:1 CR - 124" Big Bore - 107" M8FeaturesValve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valvesType 3 hard-anodized crown offers corrosion resistance for alcohol-added...

KB Performance #KB595LCA.005 - Piston Kit - 4.250" +0.005" - 11.8:1 CR - 124" Big Bore - 107" M8

Piston Kit - 4.250" +0.005" - 11.8:1 CR - 124" Big Bore - 107" M8FeaturesValve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valvesType 3 hard-anodized crown offers corrosion resistance for alcohol-added...

KB Performance #KB595LCA.STD - Piston Kit - 4.250" Standard - 11.8:1 CR - 124" Big Bore - 107" M8

Piston Kit - 4.250" Standard - 11.8:1 CR - 124" Big Bore - 107" M8FeaturesValve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valvesType 3 hard-anodized crown offers corrosion resistance for alcohol-added...

KB Performance #KB596LCA.005 - Piston Kit - 4.250" +0.005" - 11.7:1 CR - 128" Big Bore - 114"/117" M8

Piston Kit - 4.250" +0.005" - 11.7:1 CR - 128" Big Bore - 114"/117" M8FeaturesValve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valvesType 3 hard-anodized crown offers corrosion resistance for...

KB Performance #KB596LCA.STD - Piston Kit - 4.250" Standard - 11.7:1 CR - 128" Big Bore - 114"/117" M8

Piston Kit - 4.250" Standard - 11.7:1 CR - 128" Big Bore - 114"/117" M8FeaturesValve pockets are designed to accept up to +4.00 mm oversized intake and exhaust valvesType 3 hard-anodized crown offers corrosion resistance for...

KB Performance #KB660C.005 - Piston Kit - 3.875" +0.005" - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc Heads

For '12-'17 103" Twin Cam and '07-'13 Twin Cam big bore 103" (with Screamin' Eagle 95 cc heads).FeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsReplacement rings and...

KB Performance #KB660C.STD - Piston Kit - 3.875" Standard - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc Heads

For '12-'17 103" Twin Cam and '07-'13 Twin Cam big bore 103" (with Screamin' Eagle 95 cc heads).FeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsReplacement rings and...

KB Performance #KB660LCA.STD - Piston Kit - 3.875" Standard - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc Heads

Piston Kit - 3.875" Standard - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc HeadsFeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance;...

KB Performance #KB661C.005 - Piston Kit - 4.000" +0.005" - 10.0:1 CR - 96"/103" Twin Cam Bored to 110 CI w/SE 95 cc Heads

Piston Kit - 4.000" +0.005" - 10.0:1 CR - 96"/103" Twin Cam Bored to 110 CI w/SE 95 cc HeadsFeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsReplacement...