best blower hydraulic roller roller cam 496

Imagine you’re in your garage, pulling your truck out for a spirited weekend ride, then deciding to swap in a new cam for that extra punch. You pull out the COMP Cams 11-694-8 Blower 255/262 Solid Roller Cam, feeling the solid construction and the weight of a trusted industry leader.

As you get it installed, you notice how precisely the cam journals sit in your hand, built with quality that screams durability. The grind of 255/262 duration hints at aggressive performance, perfect for a blower setup that needs that extra boost from the top end.

Once it’s in your engine, you immediately feel the difference. The throttle response becomes sharper, and the engine breathes easier at high RPMs.

Pulling through the gears, you notice the cam’s ability to sustain power, giving your ride that extra edge for street or strip.

It’s clear that this cam is designed for serious performance enthusiasts who want a reliable, high-quality component. The USA-made craftsmanship shows in the smooth operation and solid feel during installation and tuning.

However, it’s not a low-end friendly cam. If you’re looking for smooth idle or daily driver comfort, this might be a bit rough around the edges.

It’s definitely built for race or high-performance street use, so expect some noise and a more aggressive tune.

Overall, this cam delivers impressive power and durability, making it a smart upgrade for your blower setup. Just be ready for the tuning and maintenance that comes with high-performance parts.

Ever try to roar your big-block Chevy to life and get a rough idle that sounds more like a beast than a car? I’ve been there, wrestling with cams that either choke the engine or just don’t deliver that punch you crave.

That’s where the COMP Cams Big Mutha’Thumpr 243/257 really stands out.

From the moment I installed this cam, I noticed how aggressive the idle was—long exhaust duration and early intake valve opening give it that unmistakable muscle car growl. It’s built for street/strip setups, and you’ll need at least 9.5:1 compression, a 2800+ stall converter, and good headers to really unleash its potential.

Power delivery is smooth yet savage across the 2,500 to 6,100 RPM range. The broad torque curve means you feel it on every gear change, especially with aftermarket gears.

The 107-degree lobe separation angle helps with that distinctive exhaust note, making your ride sound as fierce as it looks.

Handling the rough idle takes some tuning—this cam isn’t meant for quiet cruising. But if you want that hard-hitting, street-ready feel, it’s a game-changer.

The included lifters and instructions make installation straightforward, and the fit on Chevrolet 396-454 big blocks is spot-on.

Overall, this cam delivers serious horsepower and a commanding sound, perfect for muscle car fans who want their ride to turn heads. Just be ready for the extra tuning and some aggressive driving style to get the best out of it.

You pull into the parking lot after a long afternoon cruise, and the first thing that hits you is the deep, thumping idle of your 454 big block with the COMP Cams CL11-600-8 Thumpr cam installed. As you ease into the parking spot, you notice how the engine’s aggressive growl echoes through the street, turning heads even at a casual stop.

This cam is all about that hard-hitting street performance. The choppy, thumping idle is unmistakable, giving your muscle car a fierce personality.

It’s designed to operate from 1,900 to 5,500 RPM, so it really wakes up the engine once you’re past the initial stall.

When you hit the gas, the long exhaust duration and early intake valve opening push a powerful rush of torque. The broad power band makes it perfect for street rods and muscle cars, especially with aftermarket converters and gears.

I found that with the right setup—like a 2000+ converter and a rear gear swap—you get a noticeable jump in horsepower and torque.

The installation was straightforward with the included instructions and lifters. The sound alone makes it worth it—deep, commanding, and just a little wild.

It’s a perfect match for anyone wanting that classic muscle car roar, paired with solid street manners.

Just keep in mind, this cam isn’t subtle. It’s loud, aggressive, and best suited for enthusiast setups.

If you’re after a refined, quiet ride, this might not be your best choice. But if you want a street monster that turns heads everywhere you go, it’s hard to beat.

Unboxing the COMP Cams K11-601-8 Mutha’ Thumpr was a bit like opening a treasure chest for muscle car enthusiasts. The camshaft itself has a hefty, durable feel, with a polished surface that hints at its high-performance capabilities.

Installing it into my big block Chevy was straightforward, thanks to the clear instructions and included components.

Once fired up, the engine immediately roared to life with a gritty, aggressive sound. That rough idle is exactly what you’d expect from a cam designed for street/strip action.

I noticed a significant boost in torque from about 2,200 RPM onward, with the power curve broad and flat, perfect for those who want muscle car feel on the street.

The 235/249 duration at .050″ and the 107-degree lobe separation angle give it a distinctive lope at idle, which adds to that classic muscle car tone. I paired it with an aftermarket converter and a set of headers, and the throttle response felt snappy.

The long exhaust duration creates a powerful, hard-hitting exhaust note that really turns heads.

Reaching 5,800 RPM, the cam maintained its pull, making it ideal for high-stall setups and street use. The valve lifts of 0.558″ and 0.542″ really open up the airflow, especially with the right gearing and intake setup.

Overall, this cam is a beast for anyone wanting maximum horsepower and torque in a big-block Chevy.

It’s not for the faint of heart, and the rough idle might not suit everyone. But if you’re after a cam that delivers serious street performance, this one will not disappoint.

As soon as I bolted in the COMP Cams CL11-601-8 Mutha Thumpr cam, I was blown away by its rough, commanding idle that practically shakes your core. You can feel the long exhaust duration and early intake valve opening right away, giving that unmistakable muscle car growl that turns heads at every stoplight.

Handling it on the street, I noticed how the broad torque curve really shines around 2,500 RPM and up. The cam’s designed to deliver serious power through the mid-range, making acceleration feel fierce, especially with the right supporting mods like headers and gears.

It’s loud, aggressive, and totally addictive for anyone craving that classic street muscle sound.

Installing was straightforward with the included instructions and lifters. Once in, the engine fired up with a deep, rumbling tone that’s perfect for street rods and muscle cars.

The 107-degree lobe separation gives a nice balance—rough enough for a beefy exhaust note but still manageable on the street.

During testing, I found that this cam really sings in the 2200-5800 RPM range, ideal for high-stall converters and aftermarket gears. It’s best paired with a 9:1 compression ratio or higher, which helps unleash its full potential.

The power gains are noticeable, especially in the mid to upper RPMs, giving your big block plenty of punch.

Overall, if you’re after a cam that delivers a massive sound and solid street-strip performance, the Mutha Thumpr is a top-tier choice. It’s not for the faint of heart, but if you want that classic muscle car roar, it’s a game-changer.