BBC Comp Cams - .575"/.575" Lift 254°/260° Duration - OE Hydraulic Roller
$542.95
Available
Variants:
Step Nose [01-461-8]Flat Nose [11-461-8]
COMP Cams - Xtreme Auto/Marine Camshafts
OE Hydraulic Roller
PLEASE NOTE: BBC - 1965-66 396 c.i. models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models.
This cam performs well in marine and street applications. The 112 ° Lobe Separation is often used in marine applications due to their "wet exhaust" system, it prevents the water in the exhaust from getting into the engine. As the possibility of water in the intake is reduced, so are exhaust gasses. This is called "reversion".
Why should you care? Chances are you want more precise fuel control, throttle response and efficiency. Here are some other benefits of reduced "reversion":
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Broader Powerband : A 112 LSA tends to offer a more balanced power delivery across the RPM range, great for street-driven cars where you want a good mix of low-end torque and top-end power.
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Improved Vacuum : Offers better idle vacuum than camshafts with tighter LSAs (like 108 or 110). This characteristic makes it suitable for engines that rely on vacuum-driven accessories, like power brakes. More vacuum typically leads to smoother idles.
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Smoother Idle : In performance street engines, this can make the vehicle more pleasant to drive in stop-and-go traffic or at lower RPMs, without sacrificing too much performance at higher RPMs.
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Better Emissions and Fuel Economy : The reduced valve overlap helps with emissions control and fuel economy, which might be important if you're building a car for the street and need to meet certain environmental regulations.
This cam is a real gem for big-block Chevy (BBC) engines, especially if you're into street rods. It's the perfect balance of power and durability—enough grunt to make you smile every time you hit the gas without beating up the valve train. This cam really shines in 496 BBC engines or bigger, where it becomes more manageable, but still packs a punch. If you're running a 454, you'll need around an 11:1 compression ratio to make it sing, but in a 496 or larger, you can get by with about 10.5:1 and still get solid results. Now, if you're working with a 540 to 572 engine, this cam really comes into its own. A compression ratio of 10.2:1 or better, and you're off to the races—literally!
What makes this cam special is its profile. We used to run a cam in our 555 engines with similar lift and duration, but with a 110-degree lobe separation. It made decent power, but when we switched to this new Comp Cam with a 112-degree lobe sep, we saw about 35 more horsepower across the board. Plus, that 112 lobe sep gives the engine a bit more breathing room, making it a safer setup overall.
We've tried this cam in over 600 BBC engines, from 496 all the way up to 632, and it's hands down our most popular choice. Comp Cams really nailed it with this one. If you're running a smaller engine or a lower compression ratio, we've got another cam that's a bit milder and gives better low-end response. But if you're building a 496 or bigger, and you want the best mid-to-top end power without breaking the bank on valve train components, this cam is the way to go.
And don't worry about longevity—this cam won't give you trouble if you're using decent hardware. Just make sure you pair it with a high-quality lifter, like our Max Effort Series. This cam's increased lift and duration will push the spring pressures up a bit, but that's what you want to keep everything stable and running smooth.
540/555 Pump Gas Engine Dyno Results
Engine Configuration: Single plane intake, Bravo 335 rectangular port heads
Compression Ratio: 10.1:1
Performance: This combination yielded a significant 45-50 horsepower gain over previous setups with Procomp 320 heads, even with a slight drop in compression ratio.
496/505 Engine Dyno Results
Engine Configuration: Single plane intake, Bravo 335 heads
Compression Ratio: 9.85:1
Performance: Despite a lower compression ratio, this setup achieved 674-681 horsepower, highlighting the Bravo heads' efficiency and compatibility with the Comp Cams hydraulic roller.
Camshaft Insights
This Comp Cams hydraulic roller camshaft is a versatile and powerful option for BBC street rods, offering a balance of power and stability. Its unique profile, with a 112 lobe separation, outperforms previous models and is particularly well-suited for 454 and 496 bbc engines.
Camshaft Specifications
UPC | 036584082378 |
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Manufacturer | COMP Cams® |
Engine Family | Chevrolet GEN VI 454 and 502 c.i. 8 Cylinder (1996-1999) |
RPM Operating Range | 3,500-6,500 |
Cam Type | Hydraulic Roller |
Camshaft Series | Xtreme Marine |
Camshaft Gear Attachment | 3-Bolt |
Usage | Marine |
California Proposition 65 | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
Advertised Intake Duration | 308 |
Advertised Exhaust Duration | 314 |
Intake Duration at .050 Inch Lift | 254 |
Exhaust Duration at .050 Inch Lift | 260 |
Intake Valve Lift | 0.575 |
Exhaust Valve Lift | 0.575 |
Lobe Separation | 112 |
Valve Timing Lift | 0.006 |
Exhaust Close ATDC | 43 |
Intake Open BTDC | 44 |
Exhaust Open BBDC | 91 |
Intake Close ABDC | 84 |
Lifter Style | Hydraulic Roller |
Dyno Results Comparison
Detailed performance results for the Comp Cams 575/575 lift hydraulic roller camshaft across different BBC engine setups using the AFR-9000 heads. We have a section on our shop's dyno and our YouTube channel has thousands of Dyno Results for engines we've built and tested on our dyno.
Engine | Compression Ratio | Cam Specs | Heads | Dyno Result | Notes |
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572 Pump Gas Engine | 10.1:1 | Comp 575/575 Hyd. Roller | AFR/Bravo 335 Rectangular Port | Results from single plane intake | Standard performance setup with solid power output. |
540/555 Pump Gas Engine | 10.1:1 | Comp 575/575 Hyd. Roller | AFR/Bravo 335 Rectangular Port | 45-50 HP gain over Procomp 320 heads | New AFR 335 heads with 123cc chambers led to significant power increase despite lower compression. |
496/505 Pump Gas Engine | 9.85:1 | Cam Choice #1 | AFR/Bravo 335 Rectangular Port | 674 HP with low compression | Great results, but could improve with higher compression. |
572 Pump Gas Engine Dyno Results
Engine Configuration: Single plane intake, Bravo 335 rectangular port heads
Compression Ratio: 10.1:1
Performance: This setup with the Bravo 335 heads and Comp Cams hydraulic roller achieved impressive results, showcasing the cam's ability to deliver high horsepower while maintaining engine stability.
Attention Valued Customers!
When it comes to highly technical questions, our sales team at Skip White Performance might not always have the detailed answers you're looking for, especially on topics like installation procedures or tuning.
For those with detailed or specific questions, we strongly recommend checking out automotive forums and communities where these products are frequently discussed. These forums are a treasure trove of information and can provide the expert advice you need. Additionally, YouTube has countless tutorials and guides that walk you through the installation process and other technical details.
Please note: While we're here to provide top-notch products, we cannot be held responsible for any damage resulting from the use or installation of this product. Make sure to do your research and proceed with caution!
Thank you for choosing Skip White Performance!
Disclaimer
Skip White Performance is not liable for any collateral damage or incidental issues arising from the use or misuse of our products. High-performance parts are intended for experienced professionals and enthusiasts. Use at your own risk.Product Information
Product Type | Camshaft |
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Price (excl. tax) | $542.95 |
Price (incl. tax) | $542.95 |
Tax | $0.00 |
Availability | Available |
Block | BBC |
Brand | COMP Cams |
Intake Valve Lift with Factory Rocker (in) | 0.575 |
Lobe Separation (°) | 112 |
Camshaft Style | Hydraulic Roller |
Exhaust Duration @ .050" Lift (°) | 260 |
Exhaust Valve Lift with Factory Rocker (in) | 0.575 |
Intake Duration @ .050" Lift (°) | 254 |
Shipping Cost | 16.0 |
Number of reviews | 0 |
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