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COMP Cams 11-413-8 Xtreme Energy 212/218 Hydraulic Roller Cam for Chevrolet Big Block 396-454
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Daily driver to mild performance, strong torque, good mileage.
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
| Usage | Street/Performance |
| Cam Type | Hydraulic Roller |
| Grind Number | XR264HR |
| Basic Operating RPM Range | 1,200-5,200 R3 |
| Intake Duration at .050 Inch Lift | 212 DD |
| Exhaust Duration at .050 inch Lift | 218 DD |
| Advertised Intake Duration | 264 DD |
| Advertised Exhaust Duration | 270 DD |
| Lobe Separation | 110 DD |
| Intake Valve Lift | 0.51 IN |
| Exhaust Valve Lift | 0.51 IN |
| Lifters Included | No |
| Valve Springs Required | Yes |
| Assembly Lubricant Included | No |
| Camshaft Gear Attachment | 3-Bolt |
| Camshaft Material | Austempered Ductile Iron |
| Engine Family | Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) |
| Cam and Lifter Kit Upgrade | CL11-413-8 |
| K-Kit Upgrade | K11-413-8 |
| Lifter Type | Hydraulic Roller |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| SK-Kit Upgrade | SK11-413-8 |
| Amazon ASIN | B000P5G5CW |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? | Yes, but must be a race/competition only vehicle. |
| C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for On-Road Vehicles? | No |
| C.A.R.B. Exemption Reason | N/A |
| C.A.R.B. E.O. Number | N/A |
| Camshaft Series | Xtreme Energy |
| Grind Number | XR264HR |
Short Description: XE 212/218 HRlrBBC
Invoice Description: XE 212/218 Hyd Roller Cam BBC 396-454
Definition: Engine Camshaft
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
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