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- Xtreme Energy Retro-Fit XR290HR Hydraulic Roller Camshaft
Lift: .515"/.533"
Duration: 290°/296°
Lobe Separation Angle: 110°
RPM Range: 2200-6000
Hydraulic Roller-Rough idle, needs 2800+ stall, lower gears and 9.5:1 compression.
Items You Need

JEGS
Universal Camshaft Installation/Removal Tool Includes 4 camshaft adapters
Part Number : 555-80599

COMP CAMS
10° Super Lock Steel Retainers Valve Spring Diameter: 1.437" to 1.500"
Part Number : 249-740-16
![159 Engine Break-In Oil Additive [12-Ounce]](https://www.jegs.com/images/mini_200/200/249/249-159.jpg)
COMP CAMS
159 Engine Break-In Oil Additive [12-Ounce]
Part Number : 249-159

COMP CAMS
Dual Valve Springs Outer Spring O.D.: 1.437 in.
Part Number : 249-995-16

COMP CAMS
Magnum Double Roller Timing Set 1965-83 Oldsmobile V8 260-455
Part Number : 249-2113

COMP CAMS
Hi-Tech Roller Race Timing Set 1965-83 Oldsmobile V8, 260-455
Part Number : 249-3113
![Precision Cam Degree Wheel Kit [11 in.]](https://www.jegs.com/images/mini_200/500/555/555-81621.jpg)
JEGS
Precision Cam Degree Wheel Kit [11 in.]
Part Number : 555-81621

JEGS
Universal Camshaft Installation/Removal Tool Includes 4 camshaft adapters
Part Number : 555-80599

JEGS
Valvetrain Checking Springs Light tension springs
Part Number : 555-80523

COMP CAMS
Positive Stop PTFE Seals Guide Size: .530"
Part Number : 249-503-16
![Break-In/Engine Oil Supplement [12 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28060.jpg)
JEGS
Break-In/Engine Oil Supplement [12 oz. Bottle]
Part Number : 555-28060

COMP CAMS
10° Super Lock Steel Retainers Valve Spring Diameter: 1.437" to 1.500"
Part Number : 249-740-16
![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)
JEGS
Engine Assembly Lube [4 oz. Bottle]
Part Number : 555-28000
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80521.jpg)
JEGS
Valve Spring Compressor [Stud Mount]
Part Number : 555-80521

COMP CAMS
10° Titanium Retainers Valve Spring Diameter: 1.437"-1.500"
Part Number : 249-730-16
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80518.jpg)
JEGS
Valve Spring Compressor [Stud Mount]
Part Number : 555-80518
![159 Engine Break-In Oil Additive [12-Ounce]](https://www.jegs.com/images/mini_200/200/249/249-159.jpg)
COMP CAMS
159 Engine Break-In Oil Additive [12-Ounce]
Part Number : 249-159

COMP CAMS
Dual Valve Springs Outer Spring O.D.: 1.437 in.
Part Number : 249-995-16

COMP CAMS
Magnum Double Roller Timing Set 1965-83 Oldsmobile V8 260-455
Part Number : 249-2113

COMP CAMS
Hi-Tech Roller Race Timing Set 1965-83 Oldsmobile V8, 260-455
Part Number : 249-3113
![Precision Cam Degree Wheel Kit [11 in.]](https://www.jegs.com/images/mini_200/500/555/555-81621.jpg)
JEGS
Precision Cam Degree Wheel Kit [11 in.]
Part Number : 555-81621

JEGS
Universal Camshaft Installation/Removal Tool Includes 4 camshaft adapters
Part Number : 555-80599

JEGS
Valvetrain Checking Springs Light tension springs
Part Number : 555-80523

COMP CAMS
Positive Stop PTFE Seals Guide Size: .530"
Part Number : 249-503-16
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WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.
