FL350 Rand Style Water Cooled Cylinder Head
Ordering & Application Notes:
- Production & Availability: Item is generally stocked, but if not currently on the shelf, it is made to order with an estimated lead time of 2 to 4 weeks for production.
- Vehicle Compatibility: Designed specifically for the vintage Honda Odyssey FL350R 2-stroke engine.
- Complete System Integration: Pair with our Oddball ORV Stainless Radiator Bracket and high-efficiency radiator assembly for a complete, fabrication-free liquid-cooling setup.
FL350 Rand Style Water Cooled Cylinder Head
The best way to get the absolute longest life and maximum performance out of your Honda Odyssey FL350R two-stroke engine is to keep operating temperatures under control. The Rand Style Water Cooled Cylinder Head has been the gold standard in the vintage Odyssey community for decades—a thoroughly proven design that eliminates cylinder head hot spots and drastically reduces the risk of piston seizure.
Engineered as a straightforward, direct bolt-on upgrade, this liquid-cooled head allows you to modernize your cooling system without requiring complex machining or custom case fabrication. Featuring an oversized internal coolant jacket reservoir along with high-flow inlet and outlet ports, it maximizes coolant circulation across the combustion chamber dome to ensure stable, reliable power under grueling riding conditions.
Key Specifications & Features:
- Proven Rand Style Architecture: Time-tested, race-proven chamber geometry optimized specifically for the FL350R powerband.
- Oversized Coolant Reservoir: Generous internal fluid volume absorbs and carries away extreme combustion heat efficiently.
- High-Flow Inlet & Outlet Ports: Sized for unrestricted coolant flow when plumbed to external electric water pumps and radiators.
- Direct Bolt-On Replacement: Replaces the stock air-cooled head using standard cylinder stud patterns and clearances.
- Maximum Engine Reliability: Essential protection against heat fade, spark plug fouling, and thermal top-end seizures during high-load dune and desert runs.
Order Direct from Oddball ORV for Exact Fitment & Fast Shipping
| Origin | Aftermarket |
|---|---|
| Condition | New |
| ATV Make | Honda |
| ATV Model | FL350R |
| Height | 12 |
| Width | 12 |
| Depth | 6 |









