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Description
COMP Cams Rocker Arms inUltra Goldsin SBC 19012-12COMP Cams Rocker Arms 19012 12 These COMP Cams Ultra Gold Aluminum Break In Rocker Arms with a 7 16" stud diameter and 1. 3 ratio are designed for Chevrolet V8 265 400 applications. They aid the break in procedure with lower than stock ratios by eliminating the excess open spring pressure during the break in process Rocker Arms, "Ultra Gold" SBC 7 16" 1. 3 COMP Cams Ultra Gold Aluminum Break In Roller Rocker Arms, 1. 3 Ratio, 7 16" Stud Diameter for
COMP Cams Rocker Arms 19012-12 These COMP Cams Ultra-Gold Aluminum Break-In Rocker Arms with a 7/16" stud diameter and 1.3 ratio are designed for Chevrolet V8 265-400 applications. They aid the break-in procedure with lower than stock ratios by eliminating the excess open spring pressure during the break-in process Rocker Arms, "Ultra Gold" SBC 7/16" 1.3 COMP Cams Ultra-Gold Aluminum Break-In Roller Rocker Arms, 1.3 Ratio, 7/16" Stud Diameter for Small Block Chevrolet, Set of 12 COMP Cams Rocker Arms inUltra Goldsin SBCVehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1977 - 1980 | Buick | Century | Base |
| 1980 | Buick | Century | Estate |
| 1977 - 1979 | Buick | Century | Special, Custom |
| 1978 - 1980 | Buick | Century | Sport, Limited |
| 1978 | Buick | LeSabre | Base, Custom, Sport |
| 1977 - 1980 | Buick | Regal | Base |
| 1978 - 1980 | Buick | Regal | Limited, Sport |
| 1977 | Buick | Regal | SR |
| 1978 - 1979 | Buick | Skylark | Custom |
| 1977 - 1979 | Buick | Skylark | S, Base |
| 1978 | Buick | Skylark | Sport |
| 1977 | Buick | Skylark | SR |
| 1955 - 1975 | Chevrolet | Bel Air | Base |
| 1955 - 1956 | Chevrolet | Bel Air | Beauville |
| 1955 - 1957 | Chevrolet | Bel Air | Nomad |
| 1958 - 1972 | Chevrolet | Biscayne | Base |
| 1960 | Chevrolet | Biscayne | Fleetmaster |
| 1969 - 1974 | Chevrolet | Blazer | Base |
| 1969 - 1972 | Chevrolet | Brookwood | Base |
| 1978 - 1980 | Chevrolet | C10 | Big Ten |
| 1975 - 1981 | Chevrolet | C10 | Cheyenne |
| 1975 - 1980 | Chevrolet | C10 | Custom Deluxe |
| 1981 | Chevrolet | C10 | Deluxe |
| 1975 - 1986 | Chevrolet | C10 | Scottsdale, Custom, Silverado |
| 1961 - 1974 | Chevrolet | C10 Pickup | Base |
| 1968 - 1974 | Chevrolet | C10 Suburban | Base |
| 1981 - 1986 | Chevrolet | C10 Suburban | Custom |
| 1975 - 1980 | Chevrolet | C10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1975 - 1986 | Chevrolet | C10 Suburban | Silverado, Scottsdale |
| 1986 | Chevrolet | C20 | Base |
| 1981 - 1986 | Chevrolet | C20 | Custom |
| 1975 - 1980 | Chevrolet | C20 | Custom Deluxe |
| 1981 | Chevrolet | C20 | Deluxe |
| 1975 - 1986 | Chevrolet | C20 | Silverado, Scottsdale, Cheyenne |
| 1961 - 1974 | Chevrolet | C20 Pickup | Base |
| 1968 - 1974 | Chevrolet | C20 Suburban | Base |
| 1981 - 1986 | Chevrolet | C20 Suburban | Custom |
| 1975 - 1980 | Chevrolet | C20 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C20 Suburban | Deluxe |
| 1975 - 1986 | Chevrolet | C20 Suburban | Silverado, Scottsdale |
| 1975 - 1982 | Chevrolet | C30 | Base |
| 1975 - 1981 | Chevrolet | C30 | Cheyenne |
| 1981 - 1986 | Chevrolet | C30 | Custom |
| 1975 - 1980 | Chevrolet | C30 | Custom Deluxe |
| 1981 | Chevrolet | C30 | Deluxe |
| 1975 - 1986 | Chevrolet | C30 | Silverado, Scottsdale |
| 1961 - 1974 | Chevrolet | C30 Pickup | Base |
| 1967 - 1980 | Chevrolet | Camaro | Base |
| 1979 - 1986 | Chevrolet | Camaro | Berlinetta |
| 1985 - 1986 | Chevrolet | Camaro | Iroc-Z |
| 1973 - 1978 | Chevrolet | Camaro | LT |
| 1976 - 1978 | Chevrolet | Camaro | LT Rally Sport |
| 1976 - 1980 | Chevrolet | Camaro | Rally Sport |
| 1967 - 1975 | Chevrolet | Camaro | RS |
| 1981 - 1986 | Chevrolet | Camaro | Sport |
| 1967 - 1972 | Chevrolet | Camaro | SS |
| 1967 - 1986 | Chevrolet | Camaro | Z28 |
| 1982 | Chevrolet | Camaro | Z28 Indianapolis 500 Pace Car |
| 1966 - 1986 | Chevrolet | Caprice | Base |
| 1973 - 1986 | Chevrolet | Caprice | Classic |
| 1986 | Chevrolet | Caprice | Classic Brougham |
| 1976 - 1982 | Chevrolet | Caprice | Classic Estate |
| 1976 - 1981 | Chevrolet | Caprice | Classic Landau |
| 1975 - 1980 | Chevrolet | Caprice | Classic Sport |
| 1973 - 1974 | Chevrolet | Caprice | Estate |
| 1975 | Chevrolet | Caprice | Estate Wagon |
| 1979 | Chevrolet | Caprice | Landau |
| 1967 - 1968 | Chevrolet | Chevelle | 300 |
| 1967 - 1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1964 - 1972 | Chevrolet | Chevelle | Base, SS |
| 1967 - 1972 | Chevrolet | Chevelle | Concours |
| 1965 - 1973 | Chevrolet | Chevelle | Deluxe |
| 1969 - 1972 | Chevrolet | Chevelle | Greenbrier, Concours Estate |
| 1968 - 1972 | Chevrolet | Chevelle | Malibu, Nomad |
| 1963 - 1967 | Chevrolet | Chevy II | Base |
| 1963 - 1968 | Chevrolet | Chevy II | Nova |
| 1964 - 1967 | Chevrolet | Chevy II | Nova SS |
| 1955 - 1986 | Chevrolet | Corvette | Base |
| 1982 | Chevrolet | Corvette | Collector's Edition |
| 1978 - 1986 | Chevrolet | Corvette | Indianapolis 500 Pace Car |
| 1978 | Chevrolet | Corvette | Silver Anniversary Edition |
| 1975 - 1976 | Chevrolet | Corvette | Stingray |
| 1958 | Chevrolet | Del Ray | Base |
| 1959 - 1986 | Chevrolet | El Camino | Base |
| 1975 - 1977 | Chevrolet | El Camino | Classic |
| 1977 - 1986 | Chevrolet | El Camino | Conquista |
| 1968 - 1974 | Chevrolet | El Camino | Custom |
| 1979 - 1981 | Chevrolet | El Camino | Royal Knight |
| 1968 - 1986 | Chevrolet | El Camino | SS |
| 1983 | Chevrolet | G10 | Base |
| 1981 - 1986 | Chevrolet | G10 | Bonaventure |
| 1975 - 1986 | Chevrolet | G10 | Sportvan, Chevy Van, Beauville |
| 1969 - 1974 | Chevrolet | G10 Van | Base |
| 1968 - 1974 | Chevrolet | G10 Van | Sportvan |
| 1983 - 1984 | Chevrolet | G20 | Bonaventure |
| 1978 - 1981 | Chevrolet | G20 | Nomad |
| 1975 - 1986 | Chevrolet | G20 | Sportvan, Beauville, Chevy Van |
| 1968 - 1974 | Chevrolet | G20 Van | Base, Sportvan |
| 1983 - 1984 | Chevrolet | G30 | Bonaventure |
| 1975 - 1986 | Chevrolet | G30 | Hi-Cube, Sportvan, Beauville, Chevy Van |
| 1970 - 1974 | Chevrolet | G30 Van | Sportvan, Base |
| 1959 - 1985 | Chevrolet | Impala | Base |
| 1975 - 1977 | Chevrolet | Impala | Custom |
| 1981 - 1982 | Chevrolet | Impala | Estate |
| 1977 - 1979 | Chevrolet | Impala | Landau |
| 1976 | Chevrolet | Impala | S, Custom Landau |
| 1975 - 1980 | Chevrolet | Impala | Sport |
| 1964 - 1967 | Chevrolet | Impala | SS |
| 1975 - 1981 | Chevrolet | K10 | Cheyenne |
| 1981 - 1986 | Chevrolet | K10 | Custom |
| 1975 - 1980 | Chevrolet | K10 | Custom Deluxe |
| 1981 | Chevrolet | K10 | Deluxe |
| 1975 - 1986 | Chevrolet | K10 | Silverado, Scottsdale |
| 1961 - 1974 | Chevrolet | K10 Pickup | Base |
| 1968 - 1974 | Chevrolet | K10 Suburban | Base |
| 1981 - 1986 | Chevrolet | K10 Suburban | Custom |
| 1975 - 1980 | Chevrolet | K10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | K10 Suburban | Deluxe |
| 1975 - 1986 | Chevrolet | K10 Suburban | Silverado, Scottsdale |
| 1975 - 1981 | Chevrolet | K20 | Cheyenne |
| 1981 - 1986 | Chevrolet | K20 | Custom |
| 1975 - 1980 | Chevrolet | K20 | Custom Deluxe |
| 1981 | Chevrolet | K20 | Deluxe |
| 1975 - 1986 | Chevrolet | K20 | Scottsdale, Silverado |
| 1961 - 1974 | Chevrolet | K20 Pickup | Base |
| 1968 - 1974 | Chevrolet | K20 Suburban | Base |
| 1981 - 1986 | Chevrolet | K20 Suburban | Custom |
| 1975 - 1980 | Chevrolet | K20 Suburban | Custom Deluxe |
| 1981 | Chevrolet | K20 Suburban | Deluxe |
| 1975 - 1986 | Chevrolet | K20 Suburban | Silverado, Scottsdale |
| 1977 - 1981 | Chevrolet | K30 | Cheyenne |
| 1981 - 1986 | Chevrolet | K30 | Custom |
| 1977 - 1980 | Chevrolet | K30 | Custom Deluxe |
| 1981 | Chevrolet | K30 | Deluxe |
| 1977 - 1986 | Chevrolet | K30 | Scottsdale, Silverado |
| 1968 - 1974 | Chevrolet | K30 Pickup | Base |
| 1976 | Chevrolet | K5 Blazer | Base |
| 1981 - 1986 | Chevrolet | K5 Blazer | Custom |
| 1975 - 1980 | Chevrolet | K5 Blazer | Custom Deluxe, Cheyenne |
| 1981 | Chevrolet | K5 Blazer | Deluxe |
| 1984 | Chevrolet | K5 Blazer | Scottsdale |
| 1978 - 1986 | Chevrolet | K5 Blazer | Silverado |
| 1969 - 1972 | Chevrolet | Kingswood | Estate, Base |
| 1973 - 1975 | Chevrolet | Laguna | Base |
| 1973 | Chevrolet | Laguna | Estate |
| 1975 - 1976 | Chevrolet | Laguna | S3 |
| 1974 | Chevrolet | Laguna | Type S-3 |
| 1964 - 1981 | Chevrolet | Malibu | Base |
| 1974 - 1983 | Chevrolet | Malibu | Classic |
| 1975 - 1980 | Chevrolet | Malibu | Classic Estate |
| 1976 - 1981 | Chevrolet | Malibu | Classic Landau |
| 1977 - 1980 | Chevrolet | Malibu | Classic Sport, Sport |
| 1973 - 1980 | Chevrolet | Malibu | Estate |
| 1976 - 1979 | Chevrolet | Malibu | Landau |
| 1979 | Chevrolet | Malibu | Police |
| 1970 - 1986 | Chevrolet | Monte Carlo | Base |
| 1983 | Chevrolet | Monte Carlo | CL |
| 1973 - 1981 | Chevrolet | Monte Carlo | Landau |
| 1986 | Chevrolet | Monte Carlo | LS |
| 1973 - 1977 | Chevrolet | Monte Carlo | S |
| 1978 - 1980 | Chevrolet | Monte Carlo | Sport |
| 1983 - 1986 | Chevrolet | Monte Carlo | SS |
| 1978 - 1979 | Chevrolet | Monza | 2+2 Sport |
| 1976 - 1979 | Chevrolet | Monza | Base, 2+2 Spyder |
| 1977 | Chevrolet | Monza | Mirage |
| 1975 - 1979 | Chevrolet | Monza | S, 2+2 |
| 1978 | Chevrolet | Monza | Sport |
| 1976 | Chevrolet | Monza | Towne Coupe Spyder |
| 1976 - 1977 | Chevrolet | Monza | Towne Coupe, Towne Coupe Cabriolet, Towne Coupe Sport |
| 1969 - 1979 | Chevrolet | Nova | Base |
| 1976 - 1977 | Chevrolet | Nova | Concours |
| 1973 - 1979 | Chevrolet | Nova | Custom |
| 1975 | Chevrolet | Nova | LN |
| 1975 - 1978 | Chevrolet | Nova | Police |
| 1977 - 1979 | Chevrolet | Nova | Rally |
| 1976 | Chevrolet | Nova | SS |
| 1955 - 1957 | Chevrolet | One-Fifty Series | Base |
| 1961 - 1966 | Chevrolet | Suburban | Base |
| 1969 - 1972 | Chevrolet | Townsman | Base |
| 1955 - 1958 | Chevrolet | Truck | 3100, 3400, 3200, 3600, 3800, 3700, 3500 |
| 1955 - 1960 | Chevrolet | Truck | Base |
| 1955 - 1957 | Chevrolet | Two-Ten Series | Base, Del Ray |
| 1959 | Fiat | 1100 | Base |
| 1977 | Oldsmobile | Custom Cruiser | Base |
| 1980 | Oldsmobile | Cutlass | Base, LS, Brougham |
| 1978 - 1979 | Oldsmobile | Cutlass | Vista Cruiser |
| 1979 | Oldsmobile | Cutlass | Vista Cruiser Brougham |
| 1978 - 1980 | Oldsmobile | Cutlass Calais | Base |
| 1980 - 1982 | Oldsmobile | Cutlass Cruiser | Base |
| 1980 - 1981 | Oldsmobile | Cutlass Cruiser | Brougham |
| 1978 - 1979 | Oldsmobile | Cutlass Salon | 442 |
| 1978 - 1980 | Oldsmobile | Cutlass Salon | Base, Brougham |
| 1979 | Oldsmobile | Cutlass Salon | Hurst |
| 1978 - 1980 | Oldsmobile | Cutlass Supreme | Brougham, Base |
| 1977 | Oldsmobile | Delta 88 | Base, Royale |
| 1978 - 1979 | Oldsmobile | Omega | Brougham LS |
| 1977 - 1979 | Oldsmobile | Omega | Brougham, Base |
| 1977 | Oldsmobile | Omega | F85, Deluxe |
| 1977 - 1978 | Oldsmobile | Omega | SX |
| 1977 - 1979 | Oldsmobile | Starfire | Base, Firenza, GT, SX |
| 1983 - 1986 | Pontiac | Bonneville | Brougham, Base |
| 1984 - 1986 | Pontiac | Bonneville | LE |
| 1977 - 1986 | Pontiac | Firebird | Base, Trans Am |
| 1977 - 1981 | Pontiac | Firebird | Esprit, Formula |
| 1982 - 1986 | Pontiac | Firebird | S/E |
| 1978 - 1980 | Pontiac | Grand Am | Base |
| 1977 - 1980 | Pontiac | Grand LeMans | Base, Safari, LE |
| 1978 | Pontiac | Grand LeMans | SA |
| 1978 - 1986 | Pontiac | Grand Prix | Base |
| 1983 - 1986 | Pontiac | Grand Prix | Brougham |
| 1984 - 1986 | Pontiac | Grand Prix | LE |
| 1978 - 1983 | Pontiac | Grand Prix | LJ |
| 1978 - 1980 | Pontiac | Grand Prix | SJ |
| 1977 - 1980 | Pontiac | LeMans | Safari, Base |
| 1977 | Pontiac | LeMans | Sport, Sport Coupe |
| 1983 - 1986 | Pontiac | Parisienne | Brougham, Base |
| 1977 - 1979 | Pontiac | Phoenix | Base |
| 1978 - 1979 | Pontiac | Phoenix | SJ, LJ |
| 1978 - 1979 | Pontiac | Sunbird | Base, Safari |
| 1971 - 1977 | Pontiac | Ventura | Base |
| 1977 | Pontiac | Ventura | SJ |
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4.0 ★★★★★
Based on 1093 reviews
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Product Reviews
★★★★★ 5
Simple, Powerful Blower
Received the blower as expected in a timely manner. Have only used it for one day but pleasantly surprised. It is heavier but easily outperforms my previous corded blower. This is a large, simple, seriously powerful blower. No vacuum attachments, bags, etc. IMO the power is similar to gas powered units. Mine had a variable speed control which is very nice and for the power level it is unexpectedly quiet.
Only one possible con to note, it is a 12A motor so a good heavy gauge extension cord is needed, especially for long runs.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Good power
INITIAL REVIEW:
Advertising:
The blower looks exactly as it does in the photos (despite the cheesy photo shopped images). I do not have any special equipment to test the 600CFM claim, but it seems pretty powerful from what I've tested thus far. All the features, which I'll go into further detail below, are also exactly as described.
Shipping & Item condition:
Arrived on time in a large box and in good working condition with no damaging.
Price:
$45.93 - Pretty reasonable considering the competition can reach upwards of a few hundred dollars.
Build Quality/Durability:
This blower is made from durable hard plastics. It makes it pretty lightweight when you're holding it at your side and sweeping from side to side. The listing states that it's 6.4 pounds and it certainly feels about that weight. I was able to use it for 10-20 minutes and not experience any fatigue unless i was trying to lift it up. This is just an initial review, so time will tell if it will withstand multiple years of use.
Performance:
Holy cow does this thing blow! (and I mean that in the good way). There is quite a bit of force that is exerted. So much so, that it surprised me when I turned it on the first time and noticed the "kick" on my hand. It's somewhat loud, so I'd recommend wearing ear protection if you're going to be using it for long periods of time. That being said, I've owned vacuums and small blowers that have just about the same amount of loudness, so I'd place this on par.
I'm glad that I opted for the corded version instead of the battery one. Sure the cords are annoying, but I feel that the battery wouldn't last long due to the output it requires. That being said, I don't have an overly huge lawn, so an extension cord works just fine for me. If you've got a much bigger area to cover, I would consider a gas-powered blower. I simply don't trust the battery-powered blowers would last long enough for you, and the cords could be quite the hassle if you're having to walk pretty far out.
Design/Features:
I like that the nozzle has a large opening rather than a small one. I feel like that does a better job and pushing the leaves and grass out of the way than one that has a more concentrated area (despite the fact that it would exert more force). I also use it to blow out the dust and dirt from my garage. That saves me a ton of time vs having to sweep and kick up dust everywhere. I haven't tried using it to dry my car yet, but I'd imagine that it would work pretty well for that application.
A feature I love is the quick and easy dial that you can use to adjust the outputting force. Sometimes I want to blow it at maximum speed to get all the grass clippings off the driveway, and other times I want to simply clean off a chair or something light without having to lift it up into space.
The cord retainer is a nice feature. Without it, I found myself accidentally unplugging my extension cord quite a bit.
A small touch, but the handle is angled upward, so when you're holding your arm down in a relaxed position, the blower is angled in the opposite direction (downward) which is nice. I don't need to "push" the blower down at an angle, thus causing forearm strain.
I don't use it, but I like that the nozzle can be removed for more compact storage if need-be.
Lastly, I'd say that I honestly just plain like the way it looks. It's cool that you can see the turbine working through the transparent orange plastic area, and it has a nice color scheme and graphics.
Overall:
I'm pretty impressed thus far. This guy is cheap, light, and powerful. It's fun to use. So much so that I find myself looking for leaves to blow, or dirt to move out of the way just so I can spend more time with it. I would definitely recommend this blower if you have a small to average sized yard.
1-year UPDATE:
I've had this leaf blower for over a year now, and it still performs fantastically. It makes quick work of my grass and leaf clippings and doesn't mess around. It's one of the better products in my lawn care maintenance line-up, so I still highly recommend!
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Reviewed in the United States on August 14, 2018
★★★★★ 5
Very powerful, worth every penny!
Works awesome! Very powerful, and has adjustable power which is perfect when you don't want full speed.
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Very good, low budget blower.
For the price, this blower is very good. I had a WORX blower and mulcher, previously, that worked well, but this blower does the one thing better. I do miss the mulcher, but not the extra weight. This stand-alone blower is about 3 pounds lighter and more powerful; though, the all-in-one had more precise airflow, for the few small spots that it was beneficial for me.
The build quality is so-so on this blower. It lacks what we all appreciate in our tools and devices—that sharp snap and click and clean fit when putting the pieces together. The hose attaches to the body with an imperfect and never fully flush connection. It's not going to go anywhere—it does have a latch. The pieces are not as rugged and solid as my previous WORX all-in-one, but I can guess that's what helps reduce the weight. Speaking of, I had considered the WORX WG547, cordless blower, for the weight reduction and convenience of no cord, but I was concerned with loss of power, limited usage time, and higher cost. After using this WG520 for the first time, I do desire a lighter machine, but I think I would miss the extra power and limitless usage time. If budget was not an issue, I probably would've gone with the WG546—which is a step up from the cordless WG547 I was considering—with an extra battery; but that is 3-4 times the cost of this WG520. But even that blower could not match the power of this one. It's worth noting that that power comes from a large air intake on the back that can suck in loose clothing.
Cost was the number one priority for me; so I was pleasantly surprised when I found that on this low-budget machine there are variable speeds, ranging between the low to high speeds. If cost is the number one priority for you as well, without having to lose too much power capability, I can easily recommend this WG520 WORX blower.
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Reviewed in the United States on October 22, 2023
★★★★★ 5
Buy this one, forget the rest
This is one of the most powerful handheld electric blowers available. If you're serious about getting the job done quickly, this is the baseline. The next power tier is a gas backpack blower at five times the cost, then an even more powerful backpack, and then four-digit specialty tools from companies like Billy Goat. I bought the Worx because I didn't want to spend three hours raking a half-acre of grass.
My trial run was an hour of continuous use with matted wet leaves and driveway sand. It fast became apparent that to be efficient, a blower has to move leaves without being on top of them. Blowing from six inches just makes everything scatter as piles build up. You end up crisscrossing the section you just cleared to deal with the strays. The further your breeze carries, the more direct the flight path of the leaves. This range, and the ability to scour stubborn leaves from the ground, comes from air speed (MPH). At the same time, though, you need a big enough wall of air to move more than one leaf at once. That comes from the size of your pipe opening. The two multiplied together determine your total air volume over a duration, or CFM (cubic feet per minute).
In physics-land (with spherical cows and turbulence-free pipes, spared from the icy hand of marketing), CFM is the best measure of a blower's work capacity. MPH, you can change by varying the size of the pipe; a smaller pipe makes a smaller column of air moving at a faster speed (and more impressive advertising), which is why a lot of consumer-class blowers have tiny nozzles. (I'm looking at you, Sun Joe SBJ601E.) But there's a cost to adding MPH: it kills efficiency. The energy to move a volume of air goes up with the square of speed, so if you design your blower for 160 MPH, you'll get half the CFM of a 110 MPH blower from the same power. Something to mull if the blower is powered by a battery.
Still, if you know either speed or CFM, and the size of the pipe, you can calculate the other (assuming the manufacturer isn't misleading you by quoting CFM at the fan and MPH at the end of the pipe). To get CFM from MPH and the radius of a round pipe, the calculation is (radius^2)*(mph)*(1.92). That's (1.69^2)(110)(1.92) for this blower's 110 MPH and 3 3/8" pipe, with the result arriving right at the rated number of 600 CFM.
Anyway, the Worx has enough volume and speed to blow mounds of wet leaves from six feet and dry ones from ten or more. It's impressively powerful. I was switching arms every few minutes as they wore out from the backward force. Only some really baked-on mud would have benefited from a pipe-reducer attachment. Thanks to ape-like proportions or the secure fit of my spandex leaf-blowing onesie, clothing suction from the rear-directed air intake hasn't been a bother.
ALTERNATIVES:
I almost bought Toro's highly-rated "Ultra" combination blower to minimize bagging, but the vacuum functionality didn't seem that useful in videos. Maybe it'd be adequate to clean an enclosed deck area or a small yard with a scattering of dry leaves. For a larger yard, it looks like a time sink relative to a standalone mulcher. Likewise the blowing capacity, which, at 410 CFM, trails the Worx by quite a lot.
Cordless tools were also tempting. There's a 20V DeWalt people seem to like that's rated at (a perhaps optimistic) 400 CFM. Because it's a similar fan design to the Worx, we can compare power directly. DeWalt's standard battery is 20V (or so we'll stipulate; it's closer to 18V under load) and 5 amp-hours, so we're looking at 100 watt-hours total output. 15 minutes of runtime translates to a sustained draw, best case, of 400W. Assuming 90% efficiency in the brushless motor, that's 360W actually moving air. (When new. Expect a performance drop over time and battery replacements by year three.)
Compare this Worx: 12 amps at 120V equates to 1440 watts sustained, in this case feeding a 2-pole AC/DC motor that's perhaps 55% efficient. 12A is close to the maximum a device can reasonably expect from a typical 15A household socket. Even with nearly half of our power lost to heat and noise, the remaining 790W is over double what the DeWalt can manage. It's no coincidence that 600 CFM cordless blowers (Greenworks and Kobalt come to mind) have 80V/2.5Ah batteries with twice the DeWalt's capacity. Their runtime at full tilt? The same fifteen minutes, with three extra pounds to lug around from a chunk of lithium that costs more than the blower it attaches to.
And what of gas blowers? The handheld versions have around 1 HP with CFM from 450 to 500. They're usually tuned for higher MPH than the Worx, so they're likely to be a little better with wet leaves and a little worse with dry ones. Backpack blowers up the displacement and make between 1.5 and 5 horsepower. The models that you might find on the back of a professional landscaper can manage nearly 1000 CFM with speeds around 200 MPH. That's a considerable difference, but you pay for it at the checkout and in weight: figure 10 pounds or so for a handheld (relative to 7ish for this unit, plus some cord) and 20 or more for a backpack.
As of mid-2020, two other corded blowers are worth a hard look: Toro's F700 and Worx's WG521. The Toro arrived first in 2019 with a hefty 720 CFM rating, a bigger two-arm handle, and a better cord retention mechanism. The WG521 is the response: 800 CFM and 135 MPH (claimed) from a ~4" nozzle, albeit still intended for one arm. All three blowers are beastly and often close in price; pick whichever best channels your inner Tim Allen.
ACCESSORIES:
A motor this powerful benefits from a thick (low gauge) cord for longer runs. You lose a bit of performance with thinner cord. The generic orange 50-foot extension everyone has is 16-gauge. Feeding a 12A load for 50 feet, it'll have a voltage drop of about 5V. Heavier 14-gauge loses 2.5V on the same run, and industrial 12-gauge, only 1.5V. The scale is linear, so if you double up that 16-gauge cord for a 100-foot run, you'll lop off 10V.
How's that play out here? From a short and fat cable (that the cheesy plastic strain-relief piece won't actually accommodate; just tie an overhand knot over the two plugs instead), we'd expect a 1440W draw (12A * 120V, or a bit less because the house wiring itself has some drop). Losing 5V drops the total to 1380W. That's about what I found when I tested the Worx with a watt meter.
12ag / 3 ft = 1423W
14ag / 100 ft = 1352W
16ag / 50 ft = 1351W
16ag / 50 ft + 14ag / 100 ft = 1280W
With the progressive thumb dial at the lowest setting, minimum draw was 260W.
For shorter runs, disconnect extensions you don't actively need. Every cable sheds a percentage of the energy it carries to heat. As above, skinny cables lose more. Coiled on the ground and coupled with a high-load device like the Worx, they can build up enough heat to start melting insulation, which tends to cause sheepish expressions and insurance claims.
This blower is also loud enough to merit hearing protection. On an A-weighted scale (approximating human hearing), measured outdoors from three feet, it makes 82 dB on low and 91 dB on high. Indoors or near a wall, volume jumps by 10 dB and subjectively doubles. While the sound character emulates a vacuum, my Shark only measures 72 dB indoors; you'd have to run over a rat's nest of lamp cords to make one this loud. Amazon has a number of comfortable muffs for less than a Jackson that'll keep your ears intact.
You can find electric blowers with more toys, but few that'll get the job done as fast as this one. It's a bargain at the asking price. I'll update if I catch any reliability problems.
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Reviewed in the United States on December 1, 2016