HOT CAMS EXHAUST CAMSHAFTS YAMAHA YZ 450F 10-

This cam provides slightly more exhaust flow than the #4171-EXBLD. Uses stock valve springs._x000D_
|This cam provides slightly more exhaust flow than the #4171-EXBLD. Uses stock valve springs._x000D_
|

>Exhaust Duration: 265 >Exhaust Lift: 10,16 >Exhaust Lobe Center 104 > 0,15 >Intake Duration: 0 >Intake Lift: 0 >Intake Lobe Center: 0 >Intake Valve Lash: 0