KPMI Racing Spring Kit 20-20445 for 1948-1965 Panhead
$268.00
Skip to product information
KPMI Racing Spring Kit 20-20445 for 1948-1965 Panhead
$268.00
KPMI racing valve spring kits are engineered using proprietary simulation software to optimize stress, harmonics, and fatigue life. Each spring is crafted from premium super-clean chrome-silicon wire sourced from Kobe, Japan, and undergoes rigorous heat treatment, stress relief, and shot peening processes.
Equipped with heat-treated steel retainers, this kit supports up to 15.2 mm (0.600") valve lift and installs smoothly under factory rocker covers without clearance issues. Designed specifically for 1948–1965 Harley-Davidson Panhead engines, the included base washers are precision-machined to accommodate standard 16.9 mm outside diameter valve seals.
Key Features
| Brand | KPMI |
| Part Number | 20-20445 |
| MPN | FR327789_01GAUS |
| Type | Intake / Exhaust |
| Retainer Material | H.T. Steel |
| Spring Material | Chrome-Silicon Wire |
| Max Valve Lift | 15.2 mm |
| Installed Height | 37.8 mm |
| Seat Pressure | 160 lb |
| Open Pressure | 395 lb |
| Base Washer Counterbore | 16.9 mm |
| Product Weight | 676 g |
Highlights
- Engineered for high-performance applications up to 15.2 mm valve lift
- Manufactured with premium Japanese super-clean chrome-silicon wire
- Heat-treated steel retainers provide exceptional durability
- Designed for direct fit under stock Panhead rocker covers
- Precision heat-treated, stress-relieved, and shot-peened components
Compatibility
Compatible with 1948–1965 Harley-Davidson Panhead engine models.
Downloads
Frequently asked questions
|