DESCRIPTION
Type: Intake / Exhaust.
Retainer Material: Titanium.
Replacement Intake Valve Lift: 0.440in.
Intake Installed Height: 1.215in.
Intake Seat Pressure: 40#.
Intake Open Pressure: 147#.
Intake @ Lift: 0.440in.
Replacement Exhaust Valve Lift: 0.440in.
Exhaust Installed Height: 1.365in.
Exhaust Seat Pressure: 70#.
Exhaust Open Pressure: 203#.
Exhaust @ Lift: 0.440.
Designed for maximum performance features interference wound double chrome silicone springs. All spring kits should be used together. Available in complete set for one engine.
Vehicle Fitment:
2005-2009 fits HON CRF450X
2012-2017 fits HON CRF450X
Retainer Material: Titanium.
Replacement Intake Valve Lift: 0.440in.
Intake Installed Height: 1.215in.
Intake Seat Pressure: 40#.
Intake Open Pressure: 147#.
Intake @ Lift: 0.440in.
Replacement Exhaust Valve Lift: 0.440in.
Exhaust Installed Height: 1.365in.
Exhaust Seat Pressure: 70#.
Exhaust Open Pressure: 203#.
Exhaust @ Lift: 0.440.
Designed for maximum performance features interference wound double chrome silicone springs. All spring kits should be used together. Available in complete set for one engine.
Vehicle Fitment:
2005-2009 fits HON CRF450X
2012-2017 fits HON CRF450X
