* 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

*“On Line Shopping Only

The post AVV Intake Valve Guide. Fits Sportster 1957-Early 1983. Standard Outside Diameter Guide. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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

Head Dia = 1.851in.

OAL = 4.520in.

Stem Dia = 7mm / 0.2757in.

*“On Line Shopping Only

The post AVV Oversize Intake Valve. Fits 1200cc Sportster 2004-2021. High Flow .040in. Oversize Valve. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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 = 1.810in.

OAL = 4.480in.

Stem Dia = 7mm / 0.2757in.

*“On Line Shopping Only

The post AVV Intake Valve. Fits 1200cc Sportster 2004-2021. OEM Replacement. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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 # 18027-80

Head Dia = 1.940in.

OAL = 3.600in.

Stem Dia = 0.3109in.

*“On Line Shopping Only

The post AVV Intake Valve. Fits Sportster 1970-1985. OEM Replacement. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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 # 18031-86

Head Dia = 1.590in.

OAL = 4.550in.

Stem Dia = 5/16in. / 0.3108in.

*“On Line Shopping Only

The post AVV Intake Valve. Fits 883cc Sportster 1986-2003. OEM Replacement. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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 # 18023-87

Head Dia = 1.720in.

OAL = 4.480in.

Stem Dia = 0.3108in.

*“On Line Shopping Only

The post AVV Intake Valve. Fits 1200cc Sportster 1988-2003 1200cc. OEM Replacement. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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

*“On Line Shopping Only

The post AVV Exhaust Valve Guide. Fits Sportster 1957-Early 1983. Standard Outside Diameter Guide. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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

*“On Line Shopping Only

The post AVV Oversize Intake Valve Guide. Fits Sportster 1957-Early 1983. +.001in. Outside Diameter. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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 # 18691-02

Head Dia = 1.575in.

OAL = 4.620in.

Stem Dia = 7mm / 0.2755in.

*“On Line Shopping Only

The post AVV Exhaust Valve. Fits 1200cc Sportster 2004-2021. OEM Replacement. appeared first on Birds Bitz Motorcycle Parts & Accessories.

* 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 # 18033-80

Head Dia = 1.562in.

OAL = 3.510in.

Stem Dia = 0.3389in.

*“On Line Shopping Only

The post AVV Exhaust Valve. Fits Sportster 1957-1985. OEM Replacement. appeared first on Birds Bitz Motorcycle Parts & Accessories.