'07 Honda CRF450R - Hot Cams Stage 3

'07 Honda CRF450R - Hot Cams Stage 3

Stage 3: single-cam motor. Significantly more top-end power than Stage 2. Will work well for Supermoto and big bore/strokers. Uses stock auto-decompression mechanism. Uses stock valve springs.

Intake:

Intake lift (mm): 10.4 Intake lobe center (degrees): 116 Intake duration (degrees at 1mm): 251.5 Intake valve lash (mm): 0.15

Exhaust:

Exhaust lift (mm): 9.05 Exhaust lobe center (degrees): 104.5 Exhaust duration (degrees at 1mm): 265 Exhaust valve lash (mm): 0.28 Note: Divide mm values by 25.4 for inches.