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Comp Cams Part Number 35-254-4 is an Xtreme Energy 250/256 hydraulic flat tappet camshaft engineered for Ford 351W engines (1969–1996). Designed for Pro Street and bracket racing applications, this cam delivers aggressive mid-to-high-RPM performance. Works best with a 3300+ stall converter, upgraded intake, headers, and appropriate gearing.
High-performance Xtreme Energy camshaft for Ford 351W
Strong midrange and top-end power
Ideal for Pro Street or bracket race builds
Requires supporting upgrades: intake, headers, gearing, high-stall converter
Broad 2,800–7,000 RPM powerband
1-bolt camshaft gear attachment
| Specification | Value |
|---|---|
| Camshaft Type | Hydraulic Flat Tappet |
| Series | Xtreme Energy |
| Engine Family | Ford 351W (1969–1996) |
| RPM Range | 2,800–7,000 |
| Advertised Duration (Int/Exh) | 294 / 306 |
| Duration @ .050" (Int/Exh) | 250 / 256 |
| Valve Lift (Int/Exh) | 0.554 / 0.558 |
| Lobe Lift (Int/Exh) | 0.347 / 0.349 |
| Lobe Separation Angle | 110° |
| Intake Centerline | 106° |
| Intake Open (BTDC) | 41° |
| Intake Close (ABDC) | 73° |
| Exhaust Open (BBDC) | 87° |
| Exhaust Close (ATDC) | 39° |
| Valve Timing @ .006" | Not specified |
| Gear Attachment | 1-Bolt |
| Usage | Street/Performance |
| Lifter Type | Hydraulic Flat Tappet |
| Warranty | 12 Months |
| UPC | 036584031260 |
| Emissions Code | Not specified |
| Make | Ford |
| California Proposition 65 | Cancer & Reproductive Harm (P65Warnings.ca.gov) |
Make: Ford
Engine Family: 351 Windsor
Model Years: 1969–1996
Recommended Setup: 3300+ stall converter, headers, performance intake, appropriate gearing
