When it comes to high-powered professional chainsaws, few names stand out like Stihl and Husqvarna. These two giants have long been known for producing reliable, powerful, and technologically advanced chainsaws for professional loggers, arborists, and serious enthusiasts. Among their most talked-about models are the Stihl MS 500i, Stihl MS 660, and Husqvarna 572 XP. Each of these machines is built for demanding work, yet they offer different advantages depending on the task at hand.
Let’s take a deeper look at the performance, technology, design, and ideal usage scenarios of these three impressive chainsaws.
1. Stihl MS 500i – The Fuel-Injected Powerhouse
The Stihl MS 500i is a game-changer in the world of chainsaws. It’s the world’s first chainsaw with electronic fuel injection, which means it doesn’t rely on a traditional carburetor. Instead, it automatically adjusts fuel delivery based on engine load and environmental conditions. This results in faster acceleration, smoother operation, and more efficient fuel use.
Engine specs and performance:
- Displacement: 79.2 cc
- Power output: 6.7 hp
- Weight: 13.9 lbs (powerhead only)
- Bar length: Typically supports 20” to 36”
This model is ideal for professional users who need rapid response and power without sacrificing efficiency. The MS 500i starts easily in any condition—cold, hot, or in changing altitudes. Whether you’re felling massive hardwoods or bucking large logs, it handles the job with agility and speed. Its cutting performance is boosted by a high power-to-weight ratio, making it less fatiguing during long workdays.
Key features:
- Electronic fuel injection (EFI)
- Lightweight for its power class
- Excellent throttle response
- Easy start system
- Low vibration levels for improved ergonomics
2. Stihl MS 660 – The Classic Logging Legend
Before the MS 500i stole the spotlight, the Stihl MS 660 was the workhorse in forests around the world. Known for its brute strength and reliability, the MS 660 is a favorite among traditional loggers and sawmill operators. It doesn’t have the tech perks of modern saws, but it delivers raw cutting power that’s hard to beat.
Engine specs and performance:
- Displacement: 91.6 cc
- Power output: 7.1 hp
- Weight: 16.3 lbs (powerhead only)
- Bar length: Typically supports 25” to 36”
The MS 660 thrives in heavy-duty tasks. It’s not the most fuel-efficient or the quietest saw, but it will chew through dense timber like oak or eucalyptus without flinching. Built with a traditional carburetor system, it might require some manual tuning, especially in variable climates or elevations.
Key features:
- Proven, rugged design
- High power output for felling big timber
- Solid construction with metal components
- Adjustable oiler
- Manual carburetor tuning
The 660’s simplicity is its strength. It’s perfect for those who prefer mechanical reliability over electronic innovation. It’s also a favorite in rural areas where high-tech parts may be harder to service.
3. Husqvarna 572 XP – The Tech-Savvy Challenger
Husqvarna’s 572 XP is built with modern forestry challenges in mind. Designed to replace the legendary 372 XP, this model takes performance to the next level with AutoTune, advanced filtration, and ergonomic improvements.
Engine specs and performance:
- Displacement: 70.6 cc
- Power output: 5.8 hp
- Weight: 14.5 lbs (powerhead only)
- Bar length: Supports 20” to 32”
The 572 XP is a bit lighter than the MS 660, and while it doesn’t quite match the horsepower of the MS 500i, it offers exceptional balance, high RPMs, and outstanding air filtration. Its cooling capacity is improved by 20% over older models, allowing it to maintain performance even in hot and dusty environments.
Key features:
- AutoTune: automatic carburetor adjustment
- Excellent anti-vibration system
- Air Injection centrifugal air cleaning
- Magnesium crankcase for durability
- High chain speed for faster cutting
The Husqvarna 572 XP is built for users who want consistent performance with low maintenance. It’s great for both felling and limbing tasks, especially in rough conditions where reliability and endurance matter.
Comparing the Three Saws: Side-by-Side
| Feature | Stihl MS 500i | Stihl MS 660 | Husqvarna 572 XP |
|---|---|---|---|
| Engine Size | 79.2 cc | 91.6 cc | 70.6 cc |
| Horsepower | 6.7 hp | 7.1 hp | 5.8 hp |
| Weight (Powerhead) | 13.9 lbs | 16.3 lbs | 14.5 lbs |
| Fuel System | EFI (no carb) | Carburetor | AutoTune Carb |
| Tech Level | High-tech | Traditional | Modern |
| Best For | Versatility, speed | Heavy-duty felling | Balanced forestry |
| Ease of Use | Very easy start | Moderate | Easy with AutoTune |
Which One Should You Choose?
- Choose the Stihl MS 500i if you’re a professional who wants the latest technology, fast throttle response, and a chainsaw that’s both powerful and surprisingly lightweight. It’s the best all-rounder for pros who value innovation.
- Choose the Stihl MS 660 if you want old-school toughness, raw power, and a saw that can handle extreme jobs without relying on electronics. It’s perfect for remote logging where mechanical simplicity is key.
- Choose the Husqvarna 572 XP if you want a technologically advanced, well-balanced saw with great filtration, smart fuel tuning, and smooth operation. It’s ideal for professionals who work in challenging conditions and need a dependable, ergonomic machine.
Final Thoughts
Each of these chainsaws brings something unique to the table. The Stihl MS 500i represents the future of chainsaw engineering, while the MS 660 remains a solid choice for those who prefer traditional reliability. Meanwhile, the Husqvarna 572 XP strikes a beautiful balance between performance, technology, and comfort.
No matter which one you choose, you’re getting a top-tier saw capable of handling serious work. The key is to match the machine to your specific needs—whether it’s speed and smart features, old-school power, or modern-day forestry balance.
Choose wisely, maintain it well, and you’ll have a cutting companion that lasts for years.
