Yamaha RD350 CNC Billet Flower Head

Stage 3 High Compression

The NMW CNC Billet Flower Head is engineered for riders pushing the Yamaha RD350 to its limits. Machined from aerospace-grade billet aluminum, it combines precision, strength, and advanced combustion science to deliver cooler operation, sharper response, and more horsepower than stock cast heads.

Technical Highlights

• Stage 3 Specification – Designed for USA-SPEC cylinders and high-compression builds.

• Squish Band Engineering – Optimized angles, clearance, and band width accelerate turbulence at TDC, creating faster burn rates and more efficient combustion.

• Controlled Squish Velocity – Balances high compression with detonation resistance for safe, consistent power.

• Flower-Style Chamber Geometry – Promotes complete flame travel and combustion stability, improving throttle response and mid–top end power.

• Thermal Management – Extended billet fins increase heat dissipation, lowering operating temps under sustained load.

• 5-Axis CNC Machining – Guarantees tight tolerances and a perfect fit every time.

Performance Gains

• +4–6 HP increase on stock RD350 setups.
• Even greater gains when paired with ported cylinders, tuned exhausts, and performance intakes.
• Noticeably crisper throttle response and cooler sustained running temperatures.

NMW Performance Products

Every NMW billet head is developed through CAD modeling, combustion analysis, and dyno validation. Unlike cast parts, billet aluminum offers superior strength, zero porosity, and consistent accuracy.

Our designs focus on:

• Squish clearance & velocity control
• Combustion efficiency & detonation safety
• Structural reliability under high compression

DEVELOPED BY NMW RACING