No. The 455 Rancher is designed and powered for a specific maximum bar length. Exceeding it causes operational and safety issues.
- Fact: The 455 Rancher engine has 50.2cc of displacement.
- Fact: The 460 Rancher (60.3cc) is the model rated for a 24-inch bar.
- Consequence: Using a 24-inch bar on a 455 Rancher will overload the engine, reduce cutting speed, increase kickback risk, and cause premature wear on the clutch, chain, and engine.
IF THAT DIDN'T WORK: If you require a longer bar, the correct solution is to use a saw with a higher power rating, such as the 460 Rancher. Do not attempt to modify the oil pump or drive sprocket to accommodate a longer bar.
HEADS UP: Always use the bar and chain length specified for your model. The combination of engine power, chain pitch, and oil pump capacity is engineered as a system.