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Engine Kit, Steel, 0.400" Lift, HD®, Sportster™, 1970-1983

Engine Kit, Steel, 0.400" Lift, HD®, Sportster™, 1970-1983


Regular price $216.54 USD
Regular price $216.54 USD Sale price $216.54 USD
Sale Sold out

California Prop 65


  • Save time money when purchasing this kit
  • One package, everything you need for a cylinder head overhaul
  • Double your service life over OEM using KPMI® Valvetrain products
  • All the components in this kit would cost more if bought individually

Kit Includes:

  • KPMI® complete Valve Spring Kit that meets or exceeds OEM specifications
  • Seals (where applicable)
  • Keeper (where applicable)
  • KPMI® S.S. Black Diamond™ Valves, Stock Head Dia.
Installation Instructions Click Here
Type Intake/ Exhaust
Retainer Material H.T. Steel
Valve Lift 0.400"
Installed Height 1.245"
Seat Pressure 95#
Open Pressure 330#
@ Lift 0.400"
Valve Type Intake / Exhaust
Valve Material Black Diamond™ Stainless
Coating Black Nitroneg
Intake Head Diameter 49.15mm / 1.935”
Intake Stem Diameter 7.85mm / 0.3090"
Intake Tulip 23°
Intake Overall Length 3.620”
Exhaust Head Diameter 39.88mm / 1.570”
Exhaust Stem Diameter 8.6mm / 0.3384"
Exhaust Tulip 29°
Exhaust Overall Length 3.512"
Remarks Standard
Unique Identifier No. FR327789_01GAUS
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