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Comp Cams Part Number 68-231-4 is an Xtreme 4x4 206/214 hydraulic flat tappet camshaft designed for AMC/Jeep 199–258 and 4.0L inline-six engines (1964–1998). Excellent as a stock replacement upgrade, this camshaft provides improved torque, strong throttle response, and enhanced low-end drivability. Not recommended for EFI applications.
Ideal for trail use, daily-driven Jeeps, and off-road vehicles needing better torque in the low-to-mid RPM range.
Xtreme 4x4 series hydraulic flat tappet camshaft
Strong low-end torque and excellent throttle response
Great stock replacement upgrade for AMC/Jeep I6 engines
Not compatible with EFI systems
1-bolt camshaft gear attachment
Suited for 800–5,000 RPM operating range
| Specification | Value |
|---|---|
| Camshaft Type | Hydraulic Flat Tappet |
| Series | Xtreme 4x4 |
| Engine Family | AMC 199–258 / 4.0L I6 (1964–1998) |
| RPM Range | 800–5,000 |
| Advertised Duration (Int/Exh) | 250 / 258 |
| Duration @ .050" (Int/Exh) | 206 / 214 |
| Valve Lift (Int/Exh) | 0.462 / 0.485 |
| Lobe Lift (Int/Exh) | 0.289 / 0.303 |
| Lobe Separation Angle | 111° |
| Intake Centerline | 107° |
| Intake Open (BTDC) | -4° |
| Intake Close (ABDC) | 30° |
| Exhaust Open (BBDC) | 42° |
| Exhaust Close (ATDC) | -8° |
| Valve Timing @ .006" | Not specified |
| Gear Attachment | 1-Bolt |
| Usage | Street/Performance |
| Lifter Type | Hydraulic Flat Tappet |
| Warranty | 12 Months |
| UPC | 036584038764 |
| Emissions Code | Not specified |
| Make | AMC/Jeep |
| California Proposition 65 | Cancer and Reproductive Harm (P65Warnings.ca.gov) |
Make: AMC / Jeep
Engine Family: 199 / 232 / 258 / 4.0L inline-six
Model Years: 1964–1998
Cam Gear Style: 1-bolt
