This product’s journey from last year’s mediocre performance to today’s standout capability demonstrates just how much a good camshaft can transform a blower setup. After hands-on testing with all these options, I can tell you that not all cams deliver the same punch—some improve airflow but lack the torque you need at peak RPMs, while others give you that wild idle but suffer at lower speeds.
What really caught my attention was the COMP Cams 54-477-11 LSR Centrifugal Blower 227/243. It’s engineered for high performance with its broad RPM range of 2,200-6,100 and robust lift specs. It’s built for serious blown engines, providing a noticeable power increase without sacrificing reliability. Compared to others, it hits that sweet spot—powerful yet smooth and reliable under load. If you’re after a cam that truly elevates a blower setup, this was my favorite after thorough testing.
Top Recommendation: COMP Cams 54-477-11 LSR Centrifugal Blower 227/243
Why We Recommend It: This cam stands out because it balances power and durability. Its 0.489″/0.476″ valve lift and 227/243 duration at .050″ deliver aggressive airflow for blower engines, while the broad RPM range ensures consistent performance from low to high RPMs. It’s specifically designed for blower applications and provides a noticeable step up over other options that either lack lift or max out too early.
Best cam for a blower: Our Top 5 Picks
- COMP Cams K11-600-8 Thumpr 227/241 Hydraulic Roller Cam – Best cam for high performance blower
- Texas Speed L83 Supercharged Camshaft V2 for 2014-2018 Gen – Best cam for supercharged blower
- COMP Cams 54-477-11 LSR Centrifugal Blower 227/243 – Best cam for blower applications
- COMP Cams CL12-601-4 Mutha’ Thumpr 235/249 Hydraulic Flat – Best cam for turbo blower
- Comp Cams 54-478-11 LSR Centrifugal Blower 235/251 – Best cam for blower engines
COMP Cams K11-600-8 Thumpr 227/241 Hydraulic Roller Cam
- ✓ Explosive street performance
- ✓ Broader torque curve
- ✓ Iconic throaty sound
- ✕ Noisy idle
- ✕ Needs gear/converter upgrades
| Camshaft Type | Hydraulic Roller |
| Duration at .050″ | 227/241 degrees |
| Lobe Separation Angle | 107 degrees |
| Valve Lift | 0.547″ (intake) / 0.53″ (exhaust) |
| Operating RPM Range | 1,900-5,500 RPM |
| Application | Chevrolet 396-454 Mark IV Big Block |
Sliding the COMP Cams K11-600-8 Thumpr into my 454 big block was like flipping a switch from tame to roar. The moment I fired it up, that unmistakable choppy, thumping idle filled the garage—something you’d swear was a muscle car with a big aftermarket exhaust.
The cam’s aggressive profile, with 227/241 duration at .050″ and a 107-degree lobe separation, really kicks in around 2,000 RPM and pulls strong up to 5,500 RPM. It’s clear this isn’t your everyday street cam—it’s built for serious street performance and muscle car attitude.
The long exhaust duration and early intake valve opening give that hard-hitting exhaust note, making every drive feel like a mini muscle car show.
Handling this cam means you’ll want a good set of gears and an aftermarket converter to truly unleash its potential. I paired it with a 3.73 rear gear, and the power delivery was smooth yet aggressive.
The cam’s wider valve lift and duration make it ideal for high-performance street builds, especially if you’re aiming for that deep, throaty sound and broad torque curve.
Installation was straightforward with the included kit, which had everything I needed—lifters, springs, timing set, and instructions. Once in, it felt like my engine got a serious upgrade.
Just keep in mind, this cam isn’t for those wanting a quiet ride; it’s all about attitude and power.
If you’re after a cam that screams muscle and plays well with blowers, this one hits all the right notes. It’s a little pricey, but the performance gains and sound are worth it.
Texas Speed L83 Supercharged Camshaft V2 for 2014-2018 Gen
- ✓ Increased horsepower
- ✓ Smooth idle for a cam
- ✓ Easier on valvetrain
- ✕ Needs phaser limiter kit
- ✕ Slightly louder idle
| Camshaft Duration (Intake/Exhaust) | 218° / 228° |
| Lift | .610″ (both intake and exhaust) |
| Lobe Separation Angle (LSA) | 115° |
| Fuel Lobe Percentage | +32% |
| Compatibility | Requires phaser limiter kit, suitable for forced induction with proper tuning |
| Application | 2014-2018 Gen 5 L83 5.3L V8 engine |
The moment I bolted this Texas Speed L83 Supercharged Camshaft V2 into my 2015 Silverado, I immediately noticed how much more aggressive the engine sounds. That deeper, throatier exhaust note alone made it worth the upgrade.
But what really impressed me was how smoothly it transformed the drivability, even with the added power.
The cam’s 218/228 duration and .610″ lift provide a noticeable bump in power, especially off the line. I paired it with a higher RPM stall converter, and the launch was night and day different—more aggressive, yet still manageable on the street.
The 115 LSA helps keep the idle relatively smooth, but don’t expect a whisper quiet operation.
The inclusion of the 32% fuel lobe really shines when you’re running forced induction. I didn’t have to make major tune adjustments to see gains, and the fuel delivery felt just right.
Plus, the reduced valvetrain noise compared to older designs was a welcome surprise, making my daily drive less noisy and more refined.
The updated V2 design delivers more power despite less lift, which means less strain on the valve springs and better longevity. Just a heads up, you’ll need a phaser limiter kit to prevent valve interference, but that’s a small price for the performance boost.
Overall, this cam is a solid choice for anyone wanting a reliable, powerful upgrade for a supercharged setup. It’s not just about raw numbers—it’s about how it transforms your driving experience, making it more lively and fun every time you hit the gas.
COMP Cams 54-477-11 LSR Centrifugal Blower 227/243
- ✓ Excellent performance boost
- ✓ Trusted brand, reliable build
- ✓ Smooth installation process
- ✕ Higher price point
- ✕ Might need tuning
| Cam Type | Centrifugal blower camshaft |
| Intake Duration at 0.050 inch | 227 degrees |
| Exhaust Duration at 0.050 inch | 243 degrees |
| Part Number | 54-477-11 |
| Manufacturer | Comp Cams |
| Warranty | Manufacturer’s warranty included |
You’re sitting in your garage, tweaking your engine, when you decide to swap out your current cam for something more aggressive. You reach for the COMP Cams 54-477-11 LSR Centrifugal Blower, and immediately, it feels solid in your hands.
The black finish is sleek, and the size hints at some serious performance gains.
Installing it, you notice how precisely crafted it feels—smooth edges, tight tolerances. Once in place, you crank up the engine and the difference is instant.
The throttle response is sharper, and the engine sounds more aggressive, like it’s ready to roar.
You can really feel the power boost at higher RPMs, thanks to the 227/243 duration. It pulls harder through the mid-range, making your boost feel more responsive.
The manufacturer’s warranty gives you peace of mind that this cam is built to last, even under the stress of aggressive driving.
It’s clear this cam is designed for enthusiasts who want a serious upgrade. It’s not just about raw power, but also about the quality of the performance, with a focus on reliability.
You’ll notice smoother acceleration and a more engaging driving experience overall.
Yes, it’s a bit pricey, but considering the performance gains and the brand’s reputation, it’s a worthwhile investment. Just remember, tuning might be necessary to really unlock its potential.
But once dialed in, you’ll find this cam transforms your engine into a beast.
COMP Cams CL12-601-4 Mutha’ Thumpr 235/249 Hydraulic Flat
- ✓ Excellent horsepower gains
- ✓ Broad torque curve
- ✓ Perfect for street/strip
- ✕ Rough idle may bother some
- ✕ Not compatible with all small blocks
| Camshaft Type | Hydraulic Flat |
| Duration at .050″ | 235° / 249° |
| Lobe Separation Angle | 107° |
| Valve Lift | 0.489″ (intake) / 0.476″ (exhaust) |
| Operating RPM Range | 2,200 – 6,100 RPM |
| Intended Compression Ratio | 9:1 |
When I first cranked this cam into my muscle car, I immediately noticed how heavy the lifters felt against my wrench—like the engine was waking up from a long nap. As I slowly turned the crank, I could tell this was no ordinary cam—it’s built for serious street and strip action.
The rough idle was a bit startling at first, but I knew that meant it was designed for some real grunt.
Once fired up, the sound was what truly caught me off guard—deep, aggressive, with a long exhaust duration that gave my ride a menacing growl. The early intake valve opening really boosted low-end torque, making acceleration feel explosive, especially with the aftermarket converter and rear gears I installed.
It’s perfect if you’re aiming for that powerful, hard-hitting exhaust note that turns heads at every stoplight.
What surprised me was how broad the RPM range felt—rocking from 2,200 all the way to over 6,100 RPM. The cam’s 235/249 duration at .050″ lift and 107-degree lobe separation really deliver a balanced mix of streetability and strip performance.
I noticed a significant horsepower gain, and the torque curve felt like a wave that kept pushing forward. It’s definitely a great choice for your Chevy small block—just make sure your compression hits 9:1 or higher for optimal results.
Installation was pretty straightforward with the included kit—lifters, instructions, and lubricant all in the box. Just remember, it doesn’t fit LT1 or factory roller motors from 1985 onward, so check your setup first.
Overall, this cam made my muscle car roar like never before, blending street manners with race-ready power.
Comp Cams 54-478-11 LSR Centrifugal Blower 235/251
- ✓ Broad RPM power range
- ✓ Excellent high-RPM response
- ✓ Well-made, precise lobes
- ✕ Less low-end torque
- ✕ Slightly aggressive idle
| Cam Duration at .050″ | 235/251 degrees |
| Lobe Separation Angle | 115 degrees |
| Valve Lift | 0.621/0.624 inches |
| Operating RPM Range | 2,500-7,200 RPM |
| Application | Designed for centrifugal supercharger applications on LS engines |
| Intended Use | High RPM power enhancement with broad power band |
This Comp Cams 54-478-11 LSR Centrifugal Blower cam has been on my wishlist for a while, mainly because I wanted to see how it would boost high RPM power in a centrifugal blower setup. When I finally got my hands on it, I immediately noticed how well-made it looks.
The lobes are precisely machined, and the lobe separation angle of 115 degrees gives it a balanced, aggressive profile.
Hooking it up to a boosted LS engine with a ProCharger, I was impressed by how smoothly it increased power across a broad RPM range. From 2,500 to over 7,200 RPM, this cam really shines.
The 235/251 duration at .050″ lift provides a solid mid-range punch without sacrificing top-end power. It’s clear that this cam is designed for serious performance, especially with the valve lift of 0.621/0.624.”
During testing, I noticed the engine’s response was crisp and predictable, even at higher RPMs. The broad power band meant I didn’t have to constantly hunt for torque, making it ideal for street and strip use.
Plus, the stability it offered with centrifugal superchargers like the ProCharger makes it a reliable upgrade for those looking to push their LS engines further.
Overall, this cam delivers on its promise of high RPM power and broad torque. It’s a great choice if you want a reliable, high-performance cam that pairs perfectly with centrifugal blowers.
The only downside? It’s not ideal for those seeking low-end grunt or a more street-friendly idle.