Engine

Valve Kit - Evolution/1200

FeaturesFull set of Black Diamond™ stainless steel standard size valves for engine applications listedAll valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”This process improves wear properties,...

Valve Kit - Evolution/883

FeaturesFull set of Black Diamond™ stainless steel standard size valves for engine applications listedAll valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”This process improves wear properties,...

Valve Kit - Knucklehead

FeaturesFull set of Black Diamond™ stainless steel standard size valves for engine applications listedAll valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”This process improves wear properties,...

Valve Kit - Panhead

FeaturesFull set of Black Diamond™ stainless steel standard size valves for engine applications listedAll valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”This process improves wear properties,...

Valve Kit - Sportster

FeaturesFull set of Black Diamond™ stainless steel standard size valves for engine applications listedAll valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”This process improves wear properties,...

Valve Kit - Twin Cam

FeaturesFull set of Black Diamond™ stainless steel standard size valves for engine applications listedAll valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”This process improves wear properties,...

Valve Seal

FeaturesFor use with intake and exhaust valve guidesRetain their ability to seal in adverse conditionsPTFE seals feature a metal jacket with choker springMade in the U.S.A.Specs Application: Intake Material: PTFE Type: Valve Units: 4 Pack Product Name:...

Valve Seal - 60139

FeaturesMade in the U.S.A.Specs Riding Style: Street Type: Valve Guide Application: Exhaust Outside Diameter: 0.5620" Application: Intake Length: 0.400" Product Name: Seal Stem Diameter: 0.3750" Units: 4 PackApproximate Package Weight & Dimensions...

Valve Seal - Big Twin

FeaturesMade in the U.S.A.Specs Stem Diameter: 0.3125" Application: Exhaust Length: 0.385" Product Name: Seal Units: 4 Pack Application: Intake Head Diameter: 0.4200" Outside Diameter: 0.5650" Riding Style: Street Type: Valve GuideApproximate Package...

Valve Seal - Big Twin - 60187

FeaturesMade in the U.S.A.Specs Application: Intake Application: Exhaust Outside Diameter: 0.5620" Product Name: Seal Riding Style: Street Type: Valve Guide Head Diameter: 0.562" Length: 3.375" Stem Diameter: 0.3750" Units: 4 PackApproximate Package...

Valve Seal - Exhaust

FeaturesMade in the U.S.A.Specs Type: Valve Guide Length: 0.375" Outside Diameter: 0.6300" Units: 4 Pack Application: Exhaust Head Diameter: 0.531" Product Name: Seal Stem Diameter: 0.3438" Riding Style: StreetApproximate Package Weight & Dimensions...

Valve Seal - Intake

FeaturesMade in the U.S.A.Specs Application: Intake Length: 0.375" Stem Diameter: 0.3125" Head Diameter: 0.531" Riding Style: Street Type: Valve Guide Product Name: Seal Units: 4 Pack Outside Diameter: 0.6300"Approximate Package Weight & Dimensions...

Valve Seals

FeaturesFor use with intake and exhaust valve guidesRetain their ability to seal in adverse conditionsPTFE seals feature a metal jacket with choker springMade in the U.S.A.Specs Application: Intake Material: PTFE Type: Valve Product Name: Seal Riding...

Valve Seals - 59894

FeaturesFor use with intake and exhaust valve guidesRetain their ability to seal in adverse conditionsPTFE seals feature a metal jacket with choker springMade in the U.S.A.Specs Material: PTFE Product Name: Seal Type: Valve Units: 4 Pack Application:...

Valve Seals - Evolution

FeaturesFor use with intake and exhaust valve guidesRetain their ability to seal in adverse conditionsPTFE seals feature a metal jacket with choker springMade in the U.S.A.Specs Application: Intake Material: PTFE Type: Valve Product Name: Seal Riding...

Valve Spring Kit

FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Product Name: Spring Kit Spring Open Pressure: 342 lb Spring Seat Pressure: 157 lb...

Valve Spring Kit - 60283

FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Intake Material: Steel Type: Valve Units: Kit Riding Style: Street...

Valve Spring Kit - 60351

FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Exhaust Product Name: Spring Material: Steel Spring Seat Pressure: 150...

Valve Spring Kit - 60373

FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Exhaust Riding Style: Street Collar Material: Aluminum Material: Steel...

Valve Spring Kit - 60375

FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Exhaust Riding Style: Street Spring Lift: 0.600" Collar Material:...

Valve Spring Kit - Big Twin

Features600" max lift kits are designed for maximum performanceFeature interference-wound, double-chrome silicone springs; heat-treated steel base washersInclude steel retainersMade in the U.S.A.Specs Material: Steel Spring Lift: 0,600" Type: Valve...

Valve Spring Kit - Big Twin - 59918

FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Riding Style: Street Spring Lift: 0.600" Application: Exhaust Application: Intake...

Valve Spring Kit - Big Twin - 59937

FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Exhaust Application: Intake Product Name: Spring Kit Spring Lift: 0...

Valve Spring Kit - Big Twin - 59939

FeaturesOE style replacement kitFeatures dual super clean chrome silicon springs; heat-treated steel base washers.415" liftIncludes steel retainersMade in the U.S.A.Specs Application: Intake Application: Exhaust Product Name: Spring Kit Spring Lift: 0...