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Comp Cams Part Number 54-424-11 is an XFI RPM Hi-Lift 212/218 hydraulic roller camshaft engineered for GM LS Gen III/IV 3-bolt engines (1997–2015). Designed for street/performance applications, this camshaft provides excellent throttle response, strong midrange power, and superior high-lift airflow. Ideal for enthusiasts seeking noticeable gains while maintaining street-friendly drivability.
XFI RPM Hi-Lift series hydraulic roller camshaft
Optimized for LS Gen III/IV cathedral-port engines
Strong midrange and upper RPM performance
High-lift profile for improved airflow and efficiency
3-bolt camshaft gear attachment
Suitable for street/performance applications
| Specification | Value |
|---|---|
| Camshaft Type | Hydraulic Roller |
| Series | XFI RPM Hi-Lift |
| Engine Family | GM LS Gen III/IV (1997–2015) |
| RPM Range | 1,400–6,700 |
| Advertised Duration (Int/Exh) | 265 / 271 |
| Duration @ .050" (Int/Exh) | 212 / 218 |
| Valve Lift (Int/Exh) | 0.558 / 0.563 |
| Lobe Separation Angle | 115° |
| Gear Attachment | 3-Bolt |
| Usage | Street/Performance |
| Lifter Type | Hydraulic Roller |
| Warranty | 12 Months |
| UPC | 036584068235 |
| Emissions Code | Not specified |
| Make | GM |
| California Proposition 65 | Cancer and Reproductive Harm (P65Warnings.ca.gov) |
Make: GM
Engine Family: LS Gen III / IV (Cathedral-Port)
Model Years: 1997–2015
Cam Gear Style: 3-bolt
