Top End

KB Performance #KB904C.STD - Piston Kit - 3.875" Standard - 9.25:1 CR - Big Bore - 95" Twin Cam

Piston Kit - 3.875" Standard - 9.25:1 CR - Big Bore - 95" Twin CamFeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsReplacement rings and pin locks are also available...

KB Performance #KB906C.STD - Piston Kit - 3.875" Standard - 10.5:1 CR - Big Bore - 95" Twin Cam

Piston Kit - 3.875" Standard - 10.5:1 CR - Big Bore - 95" Twin CamFeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsReplacement rings and pin locks are also available...

KB Performance #KB907C.STD - Piston Kit - 3.875" Standard - 9.5:1 CR - 96" to 103" Big Bore |103" Twin Cam

Piston Kit - 3.875" Standard - 9.5:1 CR - 96" to 103" Big Bore |103" Twin CamFeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsReplacement rings and pin...

KB Performance #KB909C.STD - Piston Kit - 3.875" Standard -10.5:1 CR - 96" to 103" Big Bore |103" Twin Cam

Piston Kit - 3.875" Standard -10.5:1 CR - 96" to 103" Big Bore |103" Twin CamFeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsReplacement rings and pin...

KB Performance #KB909LCA.STD - Piston Kit - 3.875" Standard - 11.0:1 CR - 103" Twin Cam | Big Bore 96" to 103" w/ 85 cc Heads

Piston Kit - 3.875" Standard - 11.0:1 CR - 103" Twin Cam | Big Bore 96" to 103" w/ 85 cc HeadsFeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance;...

KB Performance #KB920C.005 - Piston Kit - 3.498" +0.005" - 9.5:1 CR - Evolution Big Twin

Piston Kit - 3.498" +0.005" - 9.5:1 CR - Evolution Big TwinFeaturesPistons forged from 4032 aluminum alloyOffset pin design for quiet operationNew superior coated skirtsEach kit contains two pistons, pins, spiral-lock pin clips and Hastings...

KB Performance #KB920C.010 - Piston Kit - 3.498" +0.010" - 9.5:1 CR - Evolution Big Twin

Piston Kit - 3.498" +0.010" - 9.5:1 CR - Evolution Big TwinFeaturesPistons forged from 4032 aluminum alloyOffset pin design for quiet operationNew superior coated skirtsEach kit contains two pistons, pins, spiral-lock pin clips and Hastings...

KB Performance #KB921C.005 - Piston Kit - 3.498" +0.005" - 10.5:1 CR - Evolution Big Twin

Piston Kit - 3.498" +0.005" - 10.5:1 CR - Evolution Big TwinFeaturesPistons forged from 4032 aluminum alloyOffset pin design for quiet operationNew superior coated skirtsEach kit contains two pistons, pins, spiral-lock pin clips and Hastings...

KB Performance #KB921C.010 - Piston Kit - 3.498" +0.010" - 10.5:1 CR - Evolution Big Twin

Piston Kit - 3.498" +0.010" - 10.5:1 CR - Evolution Big TwinFeaturesPistons forged from 4032 aluminum alloyOffset pin design for quiet operationNew superior coated skirtsEach kit contains two pistons, pins, spiral-lock pin clips and Hastings...

KB Performance #KB921C.020 - Piston - Evolution

Piston - EvolutionFeaturesPistons forged from 4032 aluminum alloyOffset pin design for quiet operationNew superior coated skirtsEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsSpecsBore Size3.498"UnitsKitBore -...

KB Performance #KB922C.STD - Piston Kit - 3.498" Standard - 9.0:1 CR - Conversion to 1200 - XL883

Piston Kit - 3.498" Standard - 9.0:1 CR - Conversion to 1200 - XL883FeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin clips and Hastings moly ringsReplacement rings and pin locks are also available...

Kibblewhite #10-HC350 - Valve Seat - 1.378" OD x 1.024" ID x 0.434" H - M8

Valve Seat - 1.378" OD x 1.024" ID x 0.434" H - M8FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance and toughnessMachined from solid bar stock...

Kibblewhite #10-HC360 - Valve Seat - 1.417" OD x 1.023" ID x 0.354" H - M8

Valve Seat - 1.417" OD x 1.023" ID x 0.354" H - M8FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance and toughnessMachined from solid bar stock...

Kibblewhite #10-HC370 - Valve Seat - 1.457" OD x 1.102" ID x 0.354" H - M8

Valve Seat - 1.457" OD x 1.102" ID x 0.354" H - M8FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance and toughnessMachined from solid bar stock...

Kibblewhite #10-HC440 - Valve Seat - 1.732" OD x 1.410" ID x 0.430" H - M8

Valve Seat - 1.732" OD x 1.410" ID x 0.430" H - M8FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance and toughnessMachined from solid bar stock...

Kibblewhite #10-HC446 - Valve Seat - 1.757" OD x 1.371" ID x 0.315" H - Evolution Big Twin | M8

Valve Seat - 1.757" OD x 1.371" ID x 0.315" H - Evolution Big Twin | M8FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance and toughnessMachined...

Kibblewhite #10-HC447 - Valve Seat - 1.757" OD x 1.410" ID x 0.430" H - Evolution Big Twin | Twin Cam | XL (except RH) | M8

Valve Seat - 1.757" OD x 1.410" ID x 0.430" H - Evolution Big Twin | Twin Cam | XL (except RH) | M8FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion...

Kibblewhite #10-HC478 - Valve Seat - 1.882" OD x 1.520" ID x 0.410" H - Evolution Big Twin | Twin Cam | XL (except RH)

Valve Seat - 1.882" OD x 1.520" ID x 0.410" H - Evolution Big Twin | Twin Cam | XL (except RH)FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance...

Kibblewhite #10-HC493 - Valve Seat - 1.944" OD x 1.575" ID x 0.400" H - Shovelhead

Valve Seat - 1.944" OD x 1.575" ID x 0.400" H - ShovelheadFeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance and toughnessMachined from solid bar...

Kibblewhite #10-HC518 - Valve Seat - 2.070" OD x 1.700" ID x 0.425" H - Evolution Big Twin | Twin Cam | XL (except RH)

Valve Seat - 2.070" OD x 1.700" ID x 0.425" H - Evolution Big Twin | Twin Cam | XL (except RH)FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance...

Kibblewhite #10-HC525 - Valve Seat - 2.068" OD x 1.750" ID x 0.315" H - Evolution Big Twin

Valve Seat - 2.068" OD x 1.750" ID x 0.315" H - Evolution Big TwinFeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance and toughnessMachined from...

Kibblewhite #10-HC526 - Valve Seat - 2.070" OD x 1.610" ID x 0.450" H - Evolution Big Twin | Twin Cam | XL (except RH)

Valve Seat - 2.070" OD x 1.610" ID x 0.450" H - Evolution Big Twin | Twin Cam | XL (except RH)FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance...

Kibblewhite #10-HC541 - Valve Seat - 2.132" OD x 1.800" ID x 0.460" H - Evolution Big Twin | Twin Cam | XL (except RH)

Valve Seat - 2.132" OD x 1.800" ID x 0.460" H - Evolution Big Twin | Twin Cam | XL (except RH)FeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance...

Kibblewhite #10-HC542 - Valve Seat - 2.135" OD x 1.750" ID x 0.400" H - Shovelhead

Valve Seat - 2.135" OD x 1.750" ID x 0.400" H - ShovelheadFeaturesContain 18% - 22% Chromium for resistance to abrasion, corrosion and deformationNickel content of 1% - 2% for added corrosion resistance and toughnessMachined from solid bar...