KPMI Engine Kit 20-22150 for Harley-Davidson Panhead

KPMI Engine Kit 20-22150 for Harley-Davidson Panhead 1948-1965

$457.00
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KPMI Engine Kit 20-22150 for Harley-Davidson Panhead

KPMI Engine Kit 20-22150 for Harley-Davidson Panhead 1948-1965

$457.00

This comprehensive KPMI valvetrain engine kit provides all essential components required for a complete cylinder head overhaul in one package. Engineered with Black Diamond stainless steel valves featuring a Black Nitroneg coating and heat-treated steel retainers, it offers up to double the service life over standard OEM parts.

Designed specifically for 1948-1965 Harley-Davidson Panhead models, this kit delivers exceptional valvetrain stability up to 10.5 mm (0.415 in.) valve lift. It includes precision-engineered intake and exhaust components, complete valve spring kits, keepers, and necessary seals to streamline your engine rebuild.

Key Features

Brand KPMI
Manufacturer Part Number 20-22150
Product Type Valvetrain Engine Kit
Valve Type Intake / Exhaust
Valve Material Black Diamond™ Stainless Steel
Coating Black Nitroneg
Retainer Material H.T. Steel
Valve Lift 10.5 mm
Installed Height 34.9 mm
Seat Pressure 129 lb
Open Pressure 272 lb
Intake Head Diameter 44.45 mm
Intake Stem Diameter 9.6 mm
Intake Tulip Angle 23°
Intake Overall Length 96.5 mm
Exhaust Head Diameter 44.45 mm
Exhaust Stem Diameter 9.6 mm
Exhaust Tulip Angle 29°
Exhaust Overall Length 97.0 mm
Remarks Standard
Weight 1.8 kg

Highlights

  • Complete cylinder head overhaul package
  • Up to double the service life compared to OEM valvetrain parts
  • Includes Black Diamond stainless steel intake and exhaust valves with Black Nitroneg coating
  • Heat-treated steel retainers engineered for up to 10.5 mm valve lift

Compatibility

Compatible with 1948–1965 Harley-Davidson Panhead engine models.

What's included

  • 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.

Frequently asked questions

What models are compatible with this engine kit?

This kit is designed for 1948–1965 Harley-Davidson Panhead models.

What components are included in the kit?

The kit includes a complete KPMI Valve Spring Kit, Black Diamond stainless steel intake and exhaust valves, heat-treated steel retainers, keepers, and seals where applicable.

What is the maximum valve lift supported?

This valvetrain kit is designed for a valve lift of 10.5 mm (0.415 in.).

What material is used for the valves in this kit?

The valves are manufactured from Black Diamond stainless steel treated with a Black Nitroneg coating.

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