KPMI Engine Kit 20-22450 for Harley-Davidson Shovelhead 74 1966-1977
$453.00
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KPMI Engine Kit 20-22450 for Harley-Davidson Shovelhead 74 1966-1977
$453.00
Overhaul your cylinder heads with the KPMI Engine Kit, engineered to deliver exceptional durability and double the service life over standard OEM valvetrain components. This comprehensive package includes high-performance Black Diamond stainless steel intake and exhaust valves paired with a complete valve spring kit to meet and exceed factory specifications.
Crafted with heat-treated steel retainers and specialized Black Nitroneg coatings, these components provide reliable valve control under demanding conditions. Designed specifically for 1966–1977 Harley-Davidson Shovelhead 74ci engines, this all-in-one assembly ensures seamless compatibility and optimized airflow.
Key Features
| Brand | KPMI |
| Manufacturer Part Number | 20-22450 |
| Product Type | Engine Valve Train Kit |
| Retainer Material | H.T. Steel |
| Valve Material | Black Diamond™ Stainless Steel |
| Coating | Black Nitroneg |
| Valve Lift | 10.5 mm |
| Installed Height | 34.9 mm |
| Seat Pressure | 129 lbs |
| Open Pressure | 272 lbs |
| Intake Head Diameter | 49.53 mm |
| Intake Stem Diameter | 9.6 mm |
| Intake Tulip Angle | 23° |
| Intake Overall Length | 98.7 mm |
| Exhaust Head Diameter | 44.45 mm |
| Exhaust Stem Diameter | 9.6 mm |
| Exhaust Tulip Angle | 29° |
| Exhaust Overall Length | 96.8 mm |
| Weight | 1.13 kg |
| Seal Fitment Note | Basewasher is counterbored to fit a 16.9 mm outside diameter seal |
Highlights
- Complete top-end valve overhaul solution in one package
- Black Diamond™ stainless steel valves with Black Nitroneg coating
- Heat-treated steel retainers engineered for extended service life
- Meets or exceeds OEM valvetrain specifications
Compatibility
Compatible with Harley-Davidson 74ci Shovelhead models from years 1966 through 1977.
What's included
- KPMI Complete Valve Spring Kit
- KPMI Black Diamond™ Stainless Steel Intake & Exhaust Valves
- Keepers (where applicable)
- Valve Seals (where applicable)
Downloads
Frequently asked questions
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