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Comp Cams Part Number 11-407-8 is an Xtreme Energy 200/206 hydraulic roller camshaft designed for Chevrolet Big Block 396–454 engines (1967–1996). With an exceptionally low 600 RPM starting range, this cam is ideal for mild street performance builds that demand strong off-idle torque, smooth drivability, and improved responsiveness without sacrificing idle quality.
Xtreme Energy series hydraulic roller camshaft
Designed for smooth idle and excellent low-RPM torque
Ideal for mild street performance and drivability-focused builds
Broad 600–4,600 RPM operating range
3-bolt camshaft gear attachment
Suitable for a wide range of big block Chevy applications
| Specification | Value |
|---|---|
| Camshaft Type | Hydraulic Roller |
| Series | Xtreme Energy |
| Engine Family | Chevrolet 396–454 (1967–1996) |
| RPM Range | 600–4,600 |
| Advertised Duration (Int/Exh) | 252 / 258 |
| Duration @ .050" (Int/Exh) | 200 / 206 |
| Valve Lift (Int/Exh) | 0.510 / 0.510 |
| Lobe Separation Angle | 110° |
| Intake Open (BTDC) | 20° |
| Intake Close (ABDC) | 52° |
| Exhaust Open (BBDC) | 63° |
| Exhaust Close (ATDC) | 15° |
| Valve Timing @ .006" | Not specified |
| Gear Attachment | 3-Bolt |
| Usage | Street/Performance |
| Lifter Type | Hydraulic Roller |
| Warranty | 12 Months |
| UPC | 036584024767 |
| Emissions Code | Not specified |
| Make | Chevrolet |
| California Proposition 65 | Cancer and Reproductive Harm (P65Warnings.ca.gov) |
Make: Chevrolet
Engine Family: 396 / 402 / 427 / 454 Big Block V8
Model Years: 1967–1996
Cam Gear Style: 3-bolt
