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Xtreme Energy 218/224 Hydraulic Roller Cam for Chevrolet Small Block

was $522.95 Special Price $418.36
Xtreme Energy™ 218/224 Retro-Fit Hydraulic Roller Cam for Chevy Small Block high performance application. Largest cam for stock converter. Noticeable idle.
In stock
SKU
12-422-8
Xtreme Energy™ 218/224 Hydraulic Roller Cam for Chevy Small Block. Very strong torque with excellent mileage and a smooth idle. Xtreme Energy Cams™ bridge the gap between Magnum street cams and race only cams. Xtreme Energy Cams™ provide increased torque, vacuum, response, and power while still providing quiet operation of the valve train and the durability required in daily driven vehicles.

Xtreme Energy™

Benefits:

  • Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
  • More vacuum allows a step up in duration for greater performance
  • Best seller; excellent all around performance in street carbureted applications

Important Considerations:

  • Work best with COMP Cams® roller rockers and matched valve springs
  • Require other performance parts (intake manifold, headers, etc.) for best performance

Dyno Results

Camshaft Part #12-422-8Grind #XR270HR-10
Duration @ 0.006":270° / 276°Duration @ 0.050":218° / 224°
Max Lift w/ 1.5RR: .495" / .502"Lobe Separation:110°
Lobe ID#'s:3313 / 3314Intake Centerline:106°
Engine Type:Chevrolet 350 Small Block
Bore:4.040"Stroke:3.480"
Displacement:356ciCompression:9.25:1
Heads:Dart S/RIntake:Edelbrock performer
Carburetor:Holley #3310 Vac. Sec.Exhaust:1 5/8" Headers
Max Torque:415 ft*lbs @ 3800 RPMMax Power:342 HP @ 5100 RPM
Manifold Vacuum:15" Hg @ 800 RPM & 16.5" Hg @ 1000 RPM w/ no load.
More Information
UPC 036584025153
Manufacturer COMP Cams®
Emissions Code
Engine Family Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
RPM Operating Range 1,600-5,400
Cam Type Hydraulic Roller
Camshaft Series Xtreme Energy
Camshaft Gear Attachment 3-Bolt
Usage Street/Performance
California Proposition 65 WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration 270
Advertised Exhaust Duration 276
Intake Duration at .050 Inch Lift 218
Exhaust Duration at .050 Inch Lift 224
Intake Valve Lift 0.495
Exhaust Valve Lift 0.502
Lobe Separation 110
Intake Centerline 106
Valve Timing Lift 0.006
Exhaust Close ATDC 24
Intake Open BTDC 29
Exhaust Open BBDC 72
Intake Close ABDC 61
Lifter Style Hydraulic Roller
Make Chevrolet