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COMP Cams 21-228-4 Xtreme Energy HI-LIFT 241/247 Hydraulic Flat Cam for Chrysler 383-440
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Enter your Engine Family Number and we will confirm whether this exact converter is street-legal for your vehicle.
Hot street cam. 10:1 compression, lower gears, headers and 3000+ stall. Strong mid-range with a rough idle.
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts, the Xtreme Energy grind family offers gains in torque and horsepower while still delivering adequate vacuum for power brakes and other vacuum dependent accessories. Xtreme Energy camshafts work great in carbureted applications, but offer the best performance with aftermarket intake manifolds, lower gear ratios, headers and free flowing exhaust.
Specifications
| K-Kit Upgrade | K21-228-4 |
| Camshaft Series | Xtreme Energy Hi-Lift |
| Usage | Street/Performance |
| Cam Type | Hydraulic Flat Tappet |
| Grind Number | XE285HL |
| Basic Operating RPM Range | 2,500-6,200 R3 |
| Intake Duration at .050 Inch Lift | 241 DD |
| Exhaust Duration at .050 inch Lift | 247 DD |
| Advertised Intake Duration | 285 DD |
| Advertised Exhaust Duration | 297 DD |
| Lobe Separation | 110 DD |
| Intake Valve Lift | 0.545 IN |
| Exhaust Valve Lift | 0.545 IN |
| Lifters Included | No |
| Valve Springs Required | Yes |
| Assembly Lubricant Included | Yes |
| Camshaft Gear Attachment | 1-Bolt |
| Camshaft Material | Cast Iron |
| SK-Kit Upgrade | SK21-228-4 |
| Lifter Type | Hydraulic Flat Tappet |
| Engine Family | Chrysler 383-440 c.i. 8 Cylinder (1959-1980) |
| Cam and Lifter Kit Upgrade | CL21-228-4 |
| Grind Number | XE285HL |
⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Warranty: 12 Months
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Shipping: Free to the USA.
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