COMP CAMS 08-444-8 Xtreme Hyd Roller Cam Hyd. XR300HR-10

( Brand: Comp Cams ), ( Manufacturer Part Number: 08-444-8 ), ( Type: Camshaft ), ( Manufacturer Warranty: Lifetime ), ( Material: Steel ), ( Vintage Part: No ), ( Performance Part: Yes ), ( California Prop 65 Warning: Cancer And Reproductive Harm P65warnings.ca.gov )

Review COMP CAMS Sbc Xtreme Hyd. Roller Cam

The COMP Cams 08-444-8 Xtreme Hyd Roller Cam XR300HR-10 is a high-performance camshaft designed for Ford Modular engines, specifically those using the X300 intake and XR300 heads. This camshaft is part of COMP Cams' Xtreme Energy series, which is engineered to deliver maximum power and efficiency.

This particular camshaft features a hydroller design, which utilizes hydraulic roller lifters. Hydraulic roller lifters are self-lubricating and provide a consistent oil film to the lifter tips, reducing friction and wear. This results in a smoother running engine and improved engine durability.

The XR300HR-10 camshaft has a duration at 0.050-inch lift of 232 degrees on the intake side and 244 degrees on the exhaust side. The intake duration is accompanied by a 112-degree lobe separation angle, while the exhaust side features a 112-degree lobe separation angle as well. The intake and exhaust centers of gravity are located at 0.507-inch and 0.512-inch, respectively.

The XR300HR-10 camshaft also includes a 0.600-inch intake lift and a 0.603-inch exhaust lift. These lifts provide ample valve lift for efficient combustion and optimal engine performance.

This camshaft is CNC machined from billet steel for precision and accuracy. It is also heat-treated to ensure maximum strength and durability. The XR300HR-10 comes with a matching set of COMP Cams Xtreme Energy pushrods and lifters, ensuring a perfect fit and optimal engine performance.

In summary, the COMP Cams 08-444-8 Xtreme Hyd Roller Cam XR300HR-10 is a high-performance camshaft designed for Ford Modular engines. It features a hydroller design, which utilizes hydraulic roller lifters for improved engine durability and smooth operation. The XR300HR-10 camshaft has specifications that provide ample valve lift for efficient combustion and optimal engine performance. It is CNC machined from billet steel and comes with a matching set of COMP Cams Xtreme Energy pushrods and lifters.

The COMP Cams 08-444-8 Xtreme Hydrolroller Cam XR300HR-10 is a high-performance camshaft designed for Ford Modular engines. Here are some pros and cons that may help you make an informed decision about purchasing this camshaft:

1. Improved power and performance: This camshaft is designed to provide better power and performance by increasing the intake and exhaust durations, which can lead to increased horsepower and torque.

2. Hydrolroller technology: The hydrolroller technology used in this camshaft ensures a precise and consistent valve lash, which can help reduce engine wear and improve overall engine performance.

3. Suitable for street and race applications: The XR300HR-10 camshaft is suitable for both street and race applications, making it a versatile option for Ford Modular engine builders.

4. High-quality materials: COMP Cams uses high-quality materials in the manufacturing of their camshafts, ensuring durability and reliability.

1. Expensive: This camshaft is more expensive than some other aftermarket camshafts, which may be a deterrent for some buyers.

2. Requires matching components: In order to get the best performance from this camshaft, it may require matching intake and exhaust components, which can add to the overall cost.

3. Installation complexity: Installing this camshaft may require some expertise and specialized tools, which may add to the installation cost.

The COMP Cams 08-444-8 Xtreme Hydrolroller Cam XR300HR-10 is a high-performance camshaft designed for Ford Modular engines. While it comes with a higher price tag, it offers improved power and performance, hydrolroller technology for consistent valve lash, and suitability for both street and race applications. However, it may require matching components and specialized installation, which can add to the overall cost. Ultimately, if you're looking for top-tier performance from your Ford Modular engine, this camshaft is worth considering.

If you're looking for a high-performance camshaft for your Ford Modular engine and are willing to invest in the matching components and installation, then the COMP Cams 08-444-8 Xtreme Hydrolroller Cam XR300HR-10 is a great option to consider. It offers improved power and performance, hydrolroller technology for consistent valve lash, and suitability for both street and race applications. However, be prepared for the additional cost of matching components and installation.

Details:

Only about 500 miles on this cam. Step Nose design for '86-later OE roller 350 sbc block. Still in excellent condition. COMP Xtreme Energy XR300HR Hydraulic Roller Cam.

part #: 084448 prices

• $549.95-$621.65

specifications cashalif:

• brand: Comp Cams
• mpn: 08-444-8
• type: Camshaft
• manufacturer warranty: Lifetime
• material: Steel
• vintage part: No
• performance part: Yes
• california prop 65 warning: Cancer And Reproductive Harm P65warnings.ca.gov

seller cashalif:

• # reviews: 312
• rating: 100.0%
• city: New Lenox, Illinois

offer cashalif:

• started: December 29, 2025
• availability: In Stock
• quantity: 1
• best offers: True
• options: Ship-to-home
• sold: 0

payments cashalif:

• wallet: Apple-pay
• other
• credit card: Diners-club

shipping cashalif:

• service: UPS Ground
• transit: 4-9 Days
• class: Standard
• carrier: UPS
• type: Fixed
• cost: $15.00

general cashalif:

• condition: Used
• Engines Engine Parts > Valvetrain Components > Camshafts

returns cashalif:

• policy: No Returns

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