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* 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…
* 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…
* Highest flow level on the market. * One piece forged racing grade stainless steel alloy.* hard black nitride finish.* bearing quality hardened tip at the end of the stem to prevent premature wear with high-lift applications. * 45o angle below the lock groove to facilitate the valve seal installation.* Heat treated with a special…
* Stock length & head diameter – 1000cc Ironhead Models* 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…
* 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…
* High Performance Oversize valve* 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 installationHead Dia = 1.851in.OAL…
* Designed for Harley-Davidson heads* Use with OEM style valve seals * Cast Iron* High temp viton o-ring seal* Smooth lead-in* CNC machined* Guide ID unfinished – Requires honing* OD = .5645in. Std size* ID = .309in.* Replaces OEM # 18176-57C
* Designed for Harley-Davidson heads* Use with OEM style valve seals * Cast Iron* High temp viton o-ring seal* Smooth lead-in* CNC machined* Guide ID unfinished – Requires honing* OD = .5655in. Std size* ID = .309in.* Replaces OEM # 18179-57C
* Designed for Harley-Davidson heads* Use with OEM style valve seals * Cast Iron* High temp viton o-ring seal* Smooth lead-in* CNC machined* Guide ID unfinished – Requires honing* OD = .5645in. Std size* ID = .339in.* Replaces OEM # 18170-57B
* Designed for Harley-Davidson heads* Use with OEM style valve seals * Cast Iron* High temp viton o-ring seal* Smooth lead-in* CNC machined* Guide ID unfinished – Requires honing* OD = .5655in. Std size* ID = .339in.* Replaces OEM # 18172-57B
* 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…
* 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…
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