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Comp Cams Part Number 11-205-3 is a High Energy 218/218 hydraulic flat tappet camshaft designed for Chevrolet Big Block 396–454 engines (1967–1996). Offering strong performance with a slightly rough idle in 396 c.i. applications, this cam also provides excellent low-end torque for heavy towing in 454 engines. A versatile upgrade for street/performance builds needing improved power and responsiveness without sacrificing drivability.
High Energy series hydraulic flat tappet camshaft
Great towing torque in 454 ci and responsive performance in 396 ci
Slightly rough performance idle
Broad 1,500–5,500 RPM operating range
3-bolt camshaft gear attachment
Ideal for everyday performance or towing-focused big blocks
| Specification | Value |
|---|---|
| Camshaft Type | Hydraulic Flat Tappet |
| Series | High Energy |
| Engine Family | Chevrolet 396–454 c.i. (1967–1996) |
| RPM Range | 1,500–5,500 |
| Advertised Duration (Int/Exh) | 268 / 268 |
| Duration @ .050" (Int/Exh) | 218 / 218 |
| Valve Lift (Int/Exh) | 0.485 / 0.485 |
| Lobe Lift (Int/Exh) | 0.286 / 0.286 |
| Lobe Separation Angle | 110° |
| Intake Centerline | 106° |
| Intake Open (BTDC) | 28° |
| Intake Close (ABDC) | 60° |
| Exhaust Open (BBDC) | 68° |
| Exhaust Close (ATDC) | 20° |
| Valve Timing @ .006" | Not specified |
| Gear Attachment | 3-Bolt |
| Usage | Street/Performance / Towing |
| Lifter Type | Hydraulic Flat Tappet |
| Warranty | 12 Months |
| UPC | 036584500049 |
| Emissions Code | Not specified |
| Make | Chevrolet |
| California Proposition 65 | Cancer and Reproductive Harm (P65Warnings.ca.gov) |
Make: Chevrolet
Engine Family: 396 / 402 / 427 / 454 c.i. Big Block V8
Model Years: 1967–1996
Cam Gear Style: 3-bolt
