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Comp Cams Part Number 12-326-4 is a Magnum 236/236 hydraulic flat tappet camshaft designed for Chevrolet Small Block 262–400 engines (1958–1998). Built for street/strip applications, this camshaft provides strong midrange and upper RPM performance with a noticeable performance idle. Suitable for both classic and late small block builds using a 3-bolt cam gear configuration.
Magnum series hydraulic flat tappet camshaft
Strong midrange and top-end power
Ideal for street/strip performance builds
Designed for 262–400 small block Chevy engines
3-bolt camshaft gear attachment
Performance-oriented idle
| Specification | Value |
|---|---|
| Camshaft Type | Hydraulic Flat Tappet |
| Series | Magnum |
| Engine Family | Chevrolet 262–400 c.i. (1958–1998) |
| RPM Range | 2,200–6,200 |
| Advertised Duration (Int/Exh) | 286 / 286 |
| Duration @ .050" (Int/Exh) | 236 / 236 |
| Valve Lift (Int/Exh) | 0.490 / 0.490 |
| Lobe Lift (Int/Exh) | 0.327 / 0.327 |
| Lobe Separation Angle | 110° |
| Intake Centerline | 106° |
| Intake Open (BTDC) | 35° |
| Intake Close (ABDC) | 70° |
| Exhaust Open (BBDC) | 75° |
| Exhaust Close (ATDC) | 30° |
| Valve Timing @ .006" | Not specified |
| Gear Attachment | 3-Bolt |
| Usage | Street/Strip |
| Lifter Type | Hydraulic Flat Tappet |
| Warranty | 12 Months |
| UPC | 036584520474 |
| Emissions Code | Not specified |
| Make | Chevrolet |
| California Proposition 65 | Cancer and Reproductive Harm (P65Warnings.ca.gov) |
Make: Chevrolet
Engine Family: 262 / 283 / 302 / 305 / 307 / 327 / 350 / 383 / 400 c.i. Small Block V8
Model Years: 1958–1998
Cam Gear Style: 3-bolt
