Xtreme Energy 206/212 Hydraulic Flat Cam K-Kit for Chevrolet Small Block

Xtreme Energy™ 206/212 Hydraulic Flat Tappet Cam K-Kit for Chevy Small Block. Very strong torque with excellent mileage and a smooth idle.
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Xtreme Energy™ 206/212 Hydraulic Flat Tappet 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.

Includes Cam, Lifters, Valve Springs, Retainers, Locks, Seals, & Timing Set

Xtreme Energy™


  • 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 #12-230-2Grind #XE250H-10
Duration @ 0.006":250° / 260°Duration @ 0.050":206° / 212°
Max Lift w/ 1.5RR: .432" / .444"Lobe Separation:110°
Lobe ID#'s:5440 / 5207Intake Centerline:106°
Engine Type:Chevrolet 350 Small Block
Heads:Dart S/RIntake:Edelbrock Performer
Carburetor:Holley #3310 Vac. Sec.Exhaust:1 5/8" Headers
Max Torque:417 ft*lbs @ 3700 RPMMax Power:333 HP @ 4700 RPM
Manifold Vacuum:19.5" Hg @ 800 RPM & 21" Hg @ 1000 RPM w/ no load.
Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
RPM Operating Range: 600-4,600
Grind Number: XE250H
Cam Type: Hydraulic Flat Tappet
Lifter Style: Hydraulic Flat Tappet
Camshaft Series: Xtreme Energy
Usage: Street/Performance
California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Advertised Intake Duration: 250
Advertised Exhaust Duration: 260
Intake Duration at .050 Inch Lift: 206
Exhaust Duration at .050 Inch Lift: 212
Intake Valve Lift: 0.432
Exhaust Valve Lift: 0.444
Lobe Separation: 110
Camshaft Gear Attachment: 3-Bolt