Cylinder Works 94mm Big Bore Kit - DRZ400 LTZ400 KFX400 (2000-2022)
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Upgrade your power and performance with this 94mm Big Bore Cylinder Kit from Cylinder Works. Designed as a bolt-on solution that requires no machining, this kit boosts your engine to 434cc and delivers OEM-level reliability with premium components.
✓ Fits:
- Suzuki DR-Z400 / DR-Z400S / DR-Z400SM (2000-2022)
- Suzuki DR-Z400E (2000-2007)
- Suzuki LT-Z400 QuadSport Z (2003-2014)
- Suzuki LT-Z400 Z LE / SE (2005-2022)
- Kawasaki KFX400 (2003-2006)
- Kawasaki KLX400R (2003-2004)
- Arctic Cat DVX 400 (2004-2008)
✓ Features:
- 94mm bore increases displacement to 434cc
- Nikasil-plated cylinder - no sleeving required
- Made in the USA
- Matches OEM look and geometry
- Increases power and torque across RPM range
- Add Hot Cams crank for a 462cc stroker build
✓ What's Included:
- Big Bore Cylinder (94.00mm, Nikasil-plated)
- Vertex Forged Piston Kit
- Piston Rings, Wrist Pin & Circlips
- Complete Top-End Gasket Kit
- Compatible with Hot Cams stroker crank 0921-0211 (for 462cc)
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.