* Stock length & head diameter
* Triple Groove
* Extreme Duty
* High Flow
* one piece forged racing grade stainless steel alloy.
* Black Nitride process creates a valve that is smoother and stronger than O.E.M.
* Stems are centerless ground for a longer life
* 45o angle below the lock groove to facilitate the valve seal installation
* Replaces OEM # 18000016
Head Dia = 41mm
Overall Length = 4.025"
Stem Dia = 0.2351"
Tip Length = 0.093"
* Sold Each.
