Black Diamond Replacement Valves for Evo Sportster Conversion

Goodson Tools & Supplies

  • Black Nitroneg stems
  • One piece forged stainless steel valves impregnated with a special German process to improve wear properties and reduce friction
  • Provide resistance to corrosion and wear superior to hard chromium and electrolysis nickel plating
  • Single Groove valves
  • See Specifications Below

 

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Order No. Description Price Quantity
20-2010 Intake | 1.715" Head Dia. | 0.3100" Stem Dia. | 0.236 Tulip Radius | 23º Tulip Angle | 4.500" OAL | Replaces HBV-1720 $25.90
20-2012 Exhaust | 1.480" Head Dia. | 0.3096" Stem Dia. | 0.500 Tulip Radius | 40º Tulip Angle | 4.625" OAL | Replaces HBV-1480 $25.90
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