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1936–1947 Knucklehead Engine
1/6 scale Knucklehead Real Aging Model
¥24,600
In stock｜Ships in 2–3 days
🚚 Shipping / 配送について
- Japan: Free shipping
- USA / Europe / Australia & other countries: ¥2,000 (tracked, estimate)
- Worldwide free on 2+ engine models (applied automatically)
- In-stock items ship in 2–3 days; made-to-order in 1–2 weeks
Duties & taxes: what you’ll pay
US orders: import duties are prepaid by us. Nothing to pay on delivery.
Other countries: import duties, VAT and handling fees may be charged on delivery and are the buyer’s responsibility.
Every parcel is declared at full value and fully insured.
1936–1947 Knucklehead Engine
Real Aging Edition · 1/6 Scale
Eight decades of wear, recreated stroke by stroke in a one-off hand-painted finish. No two are ever alike.
The Knucklehead was Harley-Davidson's first overhead-valve V-twin, built from 1936 to 1947 and named for the rocker boxes that look unmistakably like a pair of knuckles. This 1/6-scale piece is finished to look like it has been running ever since — rust, oil staining, chipped paint and heat-burnt metal, all applied by hand. A genuine one-of-a-kind art piece, built and aged by a single craftsman in Osaka, Japan.
🛠 About this piece
Hand-finished by one craftsman
Sanded, primed and painted entirely by hand, one piece at a time.
5–8 layers of paint
Built up from primer to final coat to capture a real metal finish.
Ready to display, no assembly
Cast in a durable custom resin. Includes a display stand — ready to display on arrival.
▶ Watch the build come together in the video at the bottom of this page.
✨ Recommended for
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Collectors who know the difference between a Knucklehead and a Panhead
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Anyone who loves vintage American V-twins and their history
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A statement piece for a garage, studio, or office shelf
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A serious gift for the rider or builder in your life
📐 Product Specifications
| Scale | 1/6 |
| Size | Approx. 12cm (H) x 15cm (L) |
| Displacement (actual engine) | 61ci (999cc) / 74ci (1,212cc) |
| Material | Custom-blended photo-curing resin (UV-curable) |
| Finish | Multi-layer paint + hand-painted aging |
| Made in | Osaka, Japan |
| Includes | Display stand |
Made to look like it has been on the road since long before you were born.
Made with care
One-Of-A-Kind
Premium materials
Good Reviews