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Comp Cams Part Number 33-238-4 is an Xtreme Energy 218/224 hydraulic flat tappet camshaft designed for Ford 352–428 FE engines (1963–1977). This cam offers strong torque, excellent throttle response, and outstanding drivability, making it a great upgrade for street performance builds. It works with a stock converter but delivers best results with an 1800+ stall, and also provides strong towing characteristics in 428 applications with the right gearing.
Xtreme Energy series hydraulic flat tappet cam
Strong torque and crisp throttle response
Works with stock converter; prefers 1800+ stall
Excellent for performance street FE builds
Suitable for towing-focused 428 applications
1-bolt camshaft gear attachment
1,300–5,600 RPM operating range
| Specification | Value |
|---|---|
| Camshaft Type | Hydraulic Flat Tappet |
| Series | Xtreme Energy |
| Engine Family | Ford 352–428 FE (1963–1977) |
| RPM Range | 1,300–5,600 |
| Advertised Duration (Int/Exh) | 262 / 270 |
| Duration @ .050" (Int/Exh) | 218 / 224 |
| Valve Lift (Int/Exh) | 0.513 / 0.520 |
| Lobe Lift (Int/Exh) | 0.298 / 0.301 |
| Lobe Separation Angle | 110° |
| Intake Centerline | 106° |
| Intake Open (BTDC) | 25° |
| Intake Close (ABDC) | 57° |
| Exhaust Open (BBDC) | 72° |
| Exhaust Close (ATDC) | 23° |
| Valve Timing @ .006" | Not specified |
| Gear Attachment | 1-Bolt |
| Usage | Street/Performance |
| Lifter Type | Hydraulic Flat Tappet |
| Warranty | 12 Months |
| UPC | 036584080299 |
| Emissions Code | Not specified |
| Make | Ford |
| California Proposition 65 | Cancer & Reproductive Harm (P65Warnings.ca.gov) |
Make: Ford
Engine Family: 352 / 360 / 390 / 406 / 410 / 427 / 428 FE engines
Years: 1963–1977
Recommended Setup:
Stock converter acceptable
1800+ stall preferred
Works well with proper gears (especially for towing in 428 engines)
