Single Groove Black Diamond Replacement Valves for Evo, Big Twin, Twin Cam
Light and strong with optimum airflow. Stellite tips for rocker applications. Black Diamond Valves feature one piece forged stainless steel valves impregnated with a special German process to improve wear and reduce friction. Also provides resistance to corrosion and improves wear.
Manufactured by Kibblewhite Precision Machining.
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|20-20990||Intake | 2.020" Head Dia. | 0.3108" Stem Dia. | 0.670 Radius | 25º Angle | 4.440" OAL | Supercedes HBV-2020A||$24.71|
|20-20960||Exhaust | 1.700" Head Dia. | 0.3106" Stem Dia. | 0.600 Radius | 25º Angle | 4.535" OAL | Supercedes HBV-1700A||$24.71|