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Xtreme Energy 250/256 Hydraulic Flat Cam for Chevrolet Small Block
$239.95
Xtreme Energy™ 250/256 Hydraulic Flat Tappet Cam for Chevy Small Block Pro Street/bracket racing. Needs good intake, headers, gear and a 3300+ stall.
In stock
SKU
12-254-3
Xtreme Energy™ 250/256 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™
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
| Camshaft Part # | 12-254-3 | Grind # | XE294H-10 | ||||||||||||||||||||||||||||||||||||||||||||
| Duration @ 0.006": | 294° / 306 | Duration @ 0.050": | 250° / 256° | ||||||||||||||||||||||||||||||||||||||||||||
| Max Lift w/ 1.5RR: | .519" / .523" | Lobe Separation: | 110° | ||||||||||||||||||||||||||||||||||||||||||||
| Lobe ID#'s: | 5449 / 5231 | Intake Centerline: | 106° | ||||||||||||||||||||||||||||||||||||||||||||
| Engine Type: | Chevrolet 350 Small Block | ||||||||||||||||||||||||||||||||||||||||||||||
| Bore: | 4.040" | Stroke: | 3.480" | ||||||||||||||||||||||||||||||||||||||||||||
| Displacement: | 356ci | Compression: | 9.25:1 | ||||||||||||||||||||||||||||||||||||||||||||
| Heads: | Dart Sportsman II | Intake: | Edelbrock Victor Jr. | ||||||||||||||||||||||||||||||||||||||||||||
| Carburetor: | Holley 750 dbl. pmp. | Exhaust: | 1 3/4" Headers | ||||||||||||||||||||||||||||||||||||||||||||
| Max Torque: | 394 ft*lbs @ 4100 RPM | Max Power: | 415 HP @ 5800 RPM | ||||||||||||||||||||||||||||||||||||||||||||
| Manifold Vacuum: | 8" Hg @ 1000 RPM & 10.5" Hg @ 1200 RPM w/ no load. | ||||||||||||||||||||||||||||||||||||||||||||||
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| Component | Part Number |
|---|---|
| Break-In Lube | 159 |
| Valve Seals | 503-16 |
| Valve Locks | 611-16 |
| Steel Retainers | 740-16 |
| Valve Springs | 986-16 |
| Valve Springs | 26986-16 |
| Valve Locks | 614-16 |
| Steel Retainers | 795-16 |
| Push Rods | 7812-16 |
| Lifter Kit | 812-16 |
| Lifter Kit | 858-16 |
| Timing Set | 2100 |
| Rocker Arms | 1412-16 |
| Timing Set | 3100 |
| RP Rocker Push Rod Kit | RP1412-16 |
| RP Rocker Push Rod Kit | RPM1601-16 |
| CL-Kit Upgrade | CL12-254-3 |
| K-Kit Upgrade | K12-254-3 |
| SK-Kit Upgrade | SK12-254-3 |
