KPMI Valve Springs 20-20437 for Harley-Davidson Shovelhead 74 1966-1977
$84.00
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KPMI Valve Springs 20-20437 for Harley-Davidson Shovelhead 74 1966-1977
$84.00
These premium OEM replacement valve springs from KPMI are engineered specifically for Harley-Davidson Shovelhead engines to deliver exceptional reliability and fatigue life. Designed in-house using proprietary simulation software, each spring is crafted from premium super-clean chrome-silicon wire to withstand intense stress and system harmonics.
Every spring undergoes rigorous heat treatment, stress relief, and shot peening to ensure unmatched durability under demanding operating conditions. Manufactured to exact original equipment specifications, they provide optimal seat pressure and valve lift performance for your classic valvetrain.
Key Features
| Brand | KPMI |
| Manufacturer | Kibblewhite® |
| Manufacturer Part Number (MPN) | 20-20437 |
| Product Type | Valve Springs (OEM Replacement) |
| Valve Application | Intake / Exhaust |
| Material | Chrome-Silicon (Cr-Si) Steel |
| Quantity | Package of 4 |
| Valve Lift | 10.5 mm |
| Installed Height | 34.9 mm |
| Seat Pressure | 58.5 kg |
| Open Pressure | 123.4 kg |
| Product Weight | 0.35 kg |
Highlights
- Direct OEM replacement specification for Harley-Davidson Shovelhead engines
- Constructed from premium Kobe Japan super-clean chrome-silicon wire
- Rigidly heat treated, stress relieved, and shot peened for extended fatigue life
- Compatible with both intake and exhaust valve positions
Compatibility
Direct fit for 1966–1977 Harley-Davidson Shovelhead 74" (1200cc) models. Compatible with intake and exhaust valve positions.
Frequently asked questions
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