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

Xtreme Energy™ 206/212 Hydraulic Flat Tappet Cam 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.

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 Lift Intake: 0.288
Lobe Lift Exhaust: 0.296
Lobe Separation: 110
Intake Centerline: 106
Exhaust Close ATDC: 18
Intake Open BTDC: 17
Exhaust Open BBDC: 61
Intake Close ABDC: 52
Camshaft Gear Attachment: 3-Bolt
Component Part Number
Break-In Lube: 159
CL-Kit Upgrade: CL12-230-2
K-Kit Upgrade: K12-230-2
Lifter Kit: 812-16  /   858-16
Push Rods: 7812-16
Rocker Arms: 1412-16
RP Rocker Push Rod Kit: RP1412-16  /   RPM1601-16
SK-Kit Upgrade: SK12-230-2
Steel Retainers: 787-16  /   742-16
Timing Set: 2100  /   3100
Valve Locks: 648-16  /   601-16
Valve Seals: 501-16
Valve Springs: 26981-16  /   981-16