* Stock length & head diameter
* Extreme Duty
* High Flow
* one piece forged racing grade stainless steel alloy.
* Liquid nitriding 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 # 18690-02
Head Dia = 1.810″
OAL = 4.480″
Stem Dia = 7mm / 0.2757″
MFR PART No: AV-1811-7TGB
ROLLIES PART No: AV-1811-7TGB
