Yamaha Grizzly 660 Camshaft - Hot Cams - Stage 1 - `02-`08 is a direct-fit performance cam intended for single-cam Yamaha applications. It delivers a practical power and torque improvement while retaining OEM compatibility and a straightforward installation.

This Stage 1 camshaft is designed and dyno-proven in the USA and engineered using state-of-the-art valvetrain software to refine timing and lift for better low-end and midrange response. Dyno results indicate an economical 5–10% power gain when matched to supporting components. The unit is CNC-machined from 8620 billet, case-hardened steel for accurate lobe profiles and durability, and it requires no core exchange. It’s offered for YFM 660F Grizzly 4x4 (’02–’08) and YXR 660F Rhino (’04–’07) single-cam models and is intended for enthusiasts who want dependable, track- or trail-ready performance without extensive modification.

Features

• Dyno-proven design developed in the USA
• Engineered with valvetrain software for optimized timing
• Estimated 5–10% power gain with proper setup
• CNC-machined from 8620 billet, case-hardened steel
• Direct-fit Stage 1 profile for stock single-cam Grizzly/Rhino
• No core exchange required

If you have questions or want help choosing the right cam, call us directly — we can walk you through fitment and expected results. We have two install and customization locations in Austin, Texas and the Los Angeles, California area where we offer professional installation and tuning: 512-982-9393 (TX) and 562-981-6800 (CA). If you are considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov