The Big Echo Chainsaw: CS-800P, Echo’s Largest Gas Saw

The “big Echo chainsaw” most people are actually searching for is the CS-800P — Echo’s largest gas chainsaw, an 80.7cc professional-grade saw built for felling and bucking large timber, not homeowner yard cleanup. It sits well above Echo’s mid-range CS-590 and CS-680 in both engine displacement and typical bar length.

What Actually Sets the CS-800P Apart

At 80.7cc, the CS-800P’s engine displacement is meaningfully larger than Echo’s homeowner-tier saws, which typically run in the 40-60cc range — that extra displacement is what lets it swing a much longer bar (commonly 20-27 inches on this saw, versus 14-18 inches typical on homeowner models) without bogging down in thick hardwood. This is a professional/commercial-tier saw, priced and built accordingly, not a bigger version of a homeowner saw with the same internals.

Who Actually Needs a Saw This Big

A saw in the CS-800P class makes sense for regular large-diameter felling, heavy firewood processing at volume, or professional tree work — not occasional yard cleanup, where the extra weight and bar length are pure downside with no benefit. For most homeowners, a mid-range 50-60cc saw with a 16-20″ bar handles the vast majority of real yard and firewood tasks more comfortably; stepping up to an 80cc-class saw only pays off once you’re regularly cutting timber wide enough that a smaller saw’s bar can’t reach through it in one pass.

Same Dealer-Network Rule Applies

Like the rest of Echo’s gas lineup, the CS-800P itself isn’t sold as a complete unit on Amazon — it goes through authorized dealers and outdoor power equipment retailers, the same distribution model covered in our Echo at Home Depot guide. What is available here are genuine replacement parts, like the 27″ chain above, for owners who already have the saw and need a spare.

Getting Chain Pitch and Gauge Right

Chain pitch (the distance between drive links, commonly 3/8″ on saws in this class) and gauge (the thickness of the drive link that fits the bar’s groove, often .050″ here) both have to match the specific bar exactly — a chain with the right length but wrong pitch or gauge won’t seat correctly even if it looks like it fits. The replacement chain above is matched to the 27″ bar these big saws typically run; always confirm your specific saw’s pitch and gauge (stamped on the bar itself or listed in the owner’s manual) before ordering rather than assuming all 27″ Echo chains are interchangeable.

Longer Bar, More Oil, More Kickback Awareness

A longer bar and chain need more bar oil per tank of gas than a homeowner-length saw, simply because there’s more chain surface to lubricate — running the oil reservoir dry accelerates bar and chain wear faster on a big saw than it would on a shorter one. Kickback risk also scales with the nose of the bar: a longer bar has more nose area that can contact material unexpectedly, which is exactly why proper training and full PPE (chaps, face shield, hearing protection) matter more, not less, as saw size goes up. A saw in this class is genuinely more capable and genuinely less forgiving of shortcuts than a homeowner-tier model. Weight is the other real tradeoff — an 80cc-class saw with a 27″ bar is noticeably heavier than a homeowner saw for the same reason it cuts more capably, which adds real fatigue over a long day of felling or bucking that’s worth factoring in before sizing up beyond what your actual cutting demands require.

Frequently Asked Questions

What is Echo’s biggest gas chainsaw?

The CS-800P, an 80.7cc professional-grade saw, is Echo’s largest gas chainsaw, built for felling and bucking large timber rather than homeowner yard use.

Do I need an 80cc-class Echo saw for home use?

Usually not. A mid-range 50-60cc Echo saw with a 16-20 inch bar handles most homeowner yard and firewood tasks more comfortably. The big saws pay off mainly for regular large-diameter cutting.

Can I buy the CS-800P on Amazon?

No, the assembled saw goes through Echo’s authorized dealer network, not Amazon. Genuine replacement chains and parts for it are available here.

Conclusion

The “big Echo chainsaw” is the CS-800P specifically — an 80.7cc professional saw meant for serious felling and bucking work, not a bigger homeowner saw. Most home users are better served by Echo’s mid-range lineup; the CS-800P earns its size and price only once your actual cutting demands justify it. For a replacement chain from a different major brand, see our Oregon chain buying guide.