For engine conversion from 883cc to 1200cc.
All valves are specially hardened to a depth of 0.002" and a surface layer of 0.0002".
This process improves wear resistance, reduces friction, and provides protection against corrosion and wear.
Compatible with leaded and unleaded fuels.
Made in the USA.
Kit includes: • 2 Black Diamond™ Intake Valves • 2 Black Diamond™ Exhaust Valves
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Dome Angle
Intake 28°, Exhaust 34°
Dome Angle
Intake 28°, Exhaust 34°
Applications
Exhaust, Intake
Stem Diameter
Intake 0.2760" Exhaust 0.2755"
Stem Diameter
Intake 0.2760" Exhaust 0.2755"
Head Diameter
Intake 1.805", Exhaust 1.575"
Head Diameter
Intake 1.805", Exhaust 1.575"
Length
Intake 4.525", Exhaust 4.610"
Length
Intake 4.525", Exhaust 4.610"
Material
Steel Stainless steel
Black Diamond™ model
Standard size
Sold in kits
Fits:
2004 - 2021 Harley-Davidson 1200 Custom EFI XLC
2004 - 2006 Harley-Davidson 1200 Custom XLC
2006 - 2011 Harley-Davidson 1200 Low EFI XLL
2006 Harley-Davidson 1200 Low XLL
2007 - 2012 Harley-Davidson 1200 Nightster XLN
2007 - 2008 Harley-Davidson 1200 Roadster EFI XLR
2016 - 2021 Harley-Davidson 1200 Roadster XLCX
2004 - 2006 Harley-Davidson 1200 Roadster XLR
2011 - 2017 Harley-Davidson 1200 XLCP
2004 - 2009 Harley-Davidson 883 Custom EFI XLC
2004 - 2006 Harley-Davidson 883 Custom XLC
2007 - 2008 Harley-Davidson 883 EFI XL
2006 - 2010 Harley-Davidson 883 Low EFI XLL
2005 - 2006 Harley-Davidson 883 Low XLL
2005 - 2007 Harley-Davidson 883 Roadster EFI XLR
2004 - 2011 Harley-Davidson 883 Roadster XLR
2011 - 2021 Harley-Davidson 883 SuperLow XLL
2004 - 2006 Harley-Davidson 883 XL
2018 - 2021 Harley-Davidson Iron 1200 XLNS
2009 - 2021 Harley-Davidson Iron 883 XLN
2009 - 2012 Harley-Davidson Sportster 1200 X XR
2007 Harley-Davidson Sportster 1200 XL 50
2009 - 2012 Harley-Davidson Sportster 1200 XR
2018 - 2021 Harley-Davidson Sportster Forty-Eight Special XLXS
2010 - 2021 Harley-Davidson Sportster Forty-Eight XLX
2012 - 2016 Harley-Davidson Sportster Seventy-Two XLV
2014 - 2017 Harley-Davidson SuperLow 1200 XLT
2018 - 2021 Harley-Davidson XL 1200NS - Iron 1200
2018 - 2021 Harley-Davidson XL 1200XS - 48 Special
