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1936–1947 Knucklehead Engine
1/6 Scale Knucklehead - Full Drive Edition -
¥38,800
Made to order｜Ships in 1–2 weeks
🚚 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
1936–1947 Knucklehead Engine
Full Drive Edition · 1/6 Scale
The complete powertrain — engine, transmission, and primary — in 1/6 scale.
🏆 What the Full Drive Edition means
This is the most complete build in the lineup. It recreates not just the engine, but the entire powertrain — transmission and primary included. Just like the real machine, the full path of power from engine to primary to gearbox is all here.
✓ Engine (OHV Knucklehead)
✓ 4-speed transmission
✓ Primary chain case
✓ Kick starter
✓ Piping & wiring detail
The Knucklehead — Harley's first OHV V-twin, built from 1936 to 1947 and named for its knuckle-like rocker boxes. This Full Drive Edition goes all the way: not just the engine, but the entire powertrain — 4-speed transmission, primary chain case, and clutch — all faithfully recreated. This 1/6-scale piece is 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 want the complete, full-powertrain Knucklehead build
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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 |
Engine to primary to gearbox — the whole story, in your hand.
Made with care
One-Of-A-Kind
Premium materials
Good Reviews